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Estates A-Z

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List all estates

Estate name	Associated families	Houses
$estate.getName()


	Cummins	Ryefield
Temple (Palmerston)
/
Acheson	Acheson	Drumcree Mill Faus Beech Abbey
Acheson (Shanboolard)	Acheson (Shanboolard) Whitwell	Shanboolard Hall Cartron
Achill Mission	Nangle Brassey O'Donel Holmes (Achill Island) Pike Blacker	Mission settlement
Acton (Bridgemount)	Acton (Bridgemount) Jones (Drum)	Bridgemount House (Drum)
Acton (Leitrim)	Acton (Leitrim)
Adamson (Glenfarne)	Adamson (Glenfarne)	Glenfarne Hall
Adamson (Mount Plunkett)	Adamson (Mount Plunkett)	Mountplunkett
Agar	Agar	Druminshin Glebe Clooncorick Castle
Alderson, Farrer and Law	Farrer O'Malley (Kilboyne)
Alexander	Alexander	Maryville House
Algeo	Algeo	Glenboy Hollymount (Drumahaire)
Algie	Algie
Alliance Insurance Society	Browne (Oranmore and Browne) Alliance Insurance Society
Allies	Wilberforce Allies	Middlequarter
Anderson (Cross)	O'Donel Anderson (Cross)
Anderson (Wood Park)	Walsh (Castlehill) Jones (Ardnaree) Coyne Anderson (Massbrook)	Wood Park
Anketell Jones	Browne (Marquess of Sligo) Wyndham Anketell Jones
Arbuthnot	O'Donel Stoney McAlpine Vesey Arbuthnot Sheffield	Farmhill/Carradoyne Rockfleet Castle
Archer
Armstrong (Chaffpool)	Armstrong Somers	Chaffpool Achonry House
Armstrong (Clooncah)	Armstrong (Clooncah)	Clooncah
Armstrong (Garadice)	Armstrong (Garadice)	Garadice
Armstrong (Hollymount)	Armstrong (Hollymount)	Hollymount (Drumahaire)
Armstrong (Kilbracken)	Armstrong (Kilbracken) Browne (Kilbracken)	Kilbracken
Armstrong (Munakill)	Armstrong (Munakill)	Munakill
Armstrong (Oghil)	Armstrong (Oghil)	Oghil
Ashe	Ashe	Cleaghmore B Knockglass Nutfield House
Ashley	Temple, Lord Palmerston Ashley (Earl Mountbatten)	Classiebawn Castle Rindaly Cottage Kilkilloge Tower
Ashley (Lissonuffy)	Mitchell (Castle Strange) Ashley (Lissonuffy)
Ashworth	O'Donel Wyndham Ashworth
Athy	Athy	Rinville House Cottage (Dunkellin) Rinville Lodge
Atkinson (Co Galway)	Blake (Castlegrove) Atkinson (Co Galway)
Atkinson (Glencastle)	Atkinson (Rahans) Atkinson (Glencastle) Tollett
Atkinson (Rahans)	Atkinson (Rahans) Stock McLoughlin (Newfield) Atkinson (Glencastle) Orme (Abbeytown & Glenmore)	Rahans Ballylahan
Atkinson (Sallymount)	Wingfield Stratford/Wingfield King (Viscount Powerscourt) Atkinson (Sallymount)	Sallymount
Auchmuty	Auchmuty	Kilmore House
Aylward	Nugent (Pallas) (Lord Riverston) Aylward Lewis (Galway)	Ballynagar/Ballinagar Silverstream Edward's Lodge
Babington	Begg Babington Simpson's Hospital	Beech Abbey
Backhouse	Backhouse	Springfield House
Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly)	Cuff (Baron Tyrawley) Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly) Ouseley Kelly (Aghrane Castle/Castle Kelly)	The Hermitage Russaun (Russane) Ballyturin Durrow The Hermitage Aghrane Castle/Castle Kelly Carrownure House
Bagwell (Marlfield)	Bagwell	Belgrove East Grove Scart Marlfield Salisbury Oaklands Melview
Bailey	Malone Bailey
Baker (Cloongee)	McDermott (Cloongee) Moore (Cloongee) Baker (Cloongee)	Cloongee
Baker (Redhill)	Baker (Redhill)	Redhill Ardgallin
Baldwin	Baldwin
Balfe	Balfe Chichester De Burgh (Dromkeen)	Corra More Cleaboy Heathfield South Park Runnamoat Lissadorn
Ball	Reilly (Glennamaddy) Ball
Banes	Banes
Barber (Sligo)	Barber (Sligo)	Rahelly
Barbor/Barbour	Barbor/Barbour
Barfoot	Digby (Aran) Barfoot
Barlow	Barlow	Bushy Park Errit Lodge Mullen
Barnewall	Ffrench (Monivea) Barnewall (Baron Trimlestown)
Barrett (Culleenamore)	Barrett (Culleenamore)	Culleenamore Rockville (Carbury) Rathanna
Barrett (Greenhills & Ballintava)	Barrett (Greenhills & Ballintava)	Ballintava Greenhills
Barry (Gort)	Barry (Gort)	Derrykeel
Bartley	Knox (Castlereagh) Bartley	Glencalry Lodge
Barton	Ellis Barton	Ward House Mount Prospect Coote Hall
Battersby	Capell (Earl of Essex) Caulfield (Colamber Manor) Battersby	Englishtown
Batty (Mayo)
Batty/Batley	Batty/Batley
Baxter	Knox (Castlereagh) Baxter Jackson
Bayley (Rookwood)	Kelly (Rookwood) Bayley (Rookwood)	Rookwood
Bayley/Bailey	Bayley/Bailey	Annaghbeg House
Beatty	Fury/Furey Beatty	Castle Lodge
Beckett	O'Malley (Newcastle)	Newcastle
Beere	Knox (Castlereagh) Beere Deane McAlpine	Carrowgowan
Begg	Walsh (Mohill) Begg Babington Simpson's Hospital	Beech Abbey
Bell (Purrauns)	Bell	Purrauns
Bell/Gonne Bell	Browne (Marquess of Sligo) Bell Gonne Martin (Ballynahinch)	Farmhill/Carradoyne Streamstown
Bellew (Mountbellew)	Cruise Bellew (Mountbellew)	Greenville Mountbellew Castle Bellew Bellew's Grove
Bellingham	Palmer, Baronet Richey Bellingham	Prospect Lodge Sheean Lodge
Bennison	Bennison	Lodge
Beresford	Beresford/Le Poer Beresford (Marquis of Waterford)	Fenagh Glebe Curraghmore Guilcagh House Whitestown Ballyvallikin Glen House (Kilmeaden) Laherdan
Bermingham (Drum)	Moore (Drum) Bermingham (Drum) Sheil Walsh/Hussey Walsh Hussey (Mounthussey)
Bermingham/Birmingham (Ld Athenry)	Ruttledge Bodkin (Kilcloony) Bermingham/Birmingham (Lord Athenry) Trotter (Kilquain) Burke (Keeloges) Dennis (Bermingham House) Sewell	Bermingham/Birmingham House
Bermingham/Birmingham (Rosshill)	Browne (Marquess of Sligo) Bermingham/Birmingham (Rosshill) Naper/Napper Smith (Ross) Clements & Caulfield (Earls of Leitrim & Charlemont)	Rosshill
Berridge	Law Life Assurance Society Berridge	Ballynahinch Castle Fermoyle Lodge Inagh Lodge Screeb Lodge
Berry	Berry
Betagh (Killimorbologue)	Betagh (Killimorbologue)	Heathlawn
Betagh/Beytagh	Betagh/Beytagh Beytagh/Beatty	Mannin
Beytagh/Beatty	Beytagh/Beatty ffrench (Claremont)	Cappagh
Bingham	Bingham (Earl of Lucan) Ellison Browne (Marquess of Sligo)	The Lawn Rocklands St Audries
Bingham (Annagh)	Bingham (Erris) Shaen	Bingham Lodge
Bingham (Bingham's Castle)	Fawcett (Ballykinlettragh) Bingham (Erris) Shaen Gamble/Gambell Hassard	Bingham's Castle Curraghboy Binghamstown House Doolough Lodge Bangor Lodge
Bingham (Newbrook)	Bingham (Erris) Bingham (Newbrook) (Baron Clanmorris) Lambert (Cregclare & Aggard)	Newbrook Summerhill Cregaclare Ballymore Seamount
Birch	O'Donel Birch Clive	Rock House
Birchall	Birchall	Blackrock
Birchenough	Birchenough
Birmingham (Dalgin & Millbrook)	Birmingham (Dalgin & Millbrook) Kirwan (Carnaun & Dalgin)	Dalgin Millbrook
Biron/Byron	Biron
Bisset	Bisset
Black	Black
Blackall	Blackall (Coolamber)
Blacker	Blacker Boycott Dignan/Duignan	Claremount
Blackstock	Knott Handy Hardy (Dartfield) Blackstock Johnston (Williamstown)	Attikee & Kill
Blair (Ballinode)	Blair (Ballinode)	Ballinode
Blair (Kilrush)	Blair (Kilrush)
Blake (Annaghdown)	Blake (Cregg Castle) Rochfort Blake (Annaghdown)	Annaghdown
Blake (Ardfry)	Blake (Ardfry) (Lord Wallscourt)	Ardfry Prospect Hill Seafield Furzepark House Wallscourt
Blake (Ballinafad)	Blake (Ballinafad)	Ballinafad Castlelucas Cloghballymore
Blake (Ballyglunin)	Blake (Ballyglunin) French (Brooklodge)	Ballyglunin Ballina Brooklodge Culliagh North
Blake (Belmont)	Blake (Garracloon) Blake (Belmont) Crotty Meldon	Belmont
Blake (Castlegrove)	Lynch/Crean Lynch Cannon Blake (Ardfry) (Lord Wallscourt) Blake (Castlegrove)	Castlegrove Newborough Kilcloghan Castlemoyle
Blake (Cloghballymore)	Lynch (Barna) Blake (Cloghballymore) Kilkelly	Cloghballymore
Blake (Cloonee)	Blake (Towerhill)	Cloonee
Blake (Corbally)	Blake (Corbally) Lambert (Castle Lambert)	Castledaly
Blake (Corofin)	Blake (Cregg Castle) Blake (Corofin)	Corofin
Blake (Cregg Castle)	McDermott (Ramore) Kirwan (Cregg Castle) Blake (Cregg Castle) Blake (Corofin) Blake (Annaghdown)	Cregg Castle
Blake (Crumlin, Clooncon & Moorfield)	Blake (Ardfry) (Lord Wallscourt) Henry (Toghermore)	Crumlin Moorfield House
Blake (Dartfield)	Blake (Dartfield)	Dartfield
Blake (Doonmacreena & Oranmore)	Meldon Blake (Doonmacreena & Oranmore) Thorngate Butler (Doon & Thornpark)	Doonmacreena Oran Castle
Blake (Drum, Tully & Gortnamona)	Comyn (Woodstock) Blake (Drum, Tully & Gortnamona)	Blake's Lodge Cashel House Gortnamona
Blake (Duniry)	Blake (Duniry)	Brooklawn Duniry
Blake (Furbogh)	Blake (Furbogh)	Furbogh House Raford
Blake (Garracloon)	Blake (Garracloon) Blake (Belmont) Lynch (Garracloon) Blake (Tuam)	Garracloon Dowagh
Blake (Glenlo)	Blake (Cregg Castle) Blake (Kiltullagh, Frenchfort & Vermount) Blake (Glenlo)	Glenlo
Blake (Hollypark)	Blake (Hollypark) Connellan White (Limerick)	Hollypark
Blake (Inver)	Blake (Towerhill)	Inver Lodge
Blake (Killiaghan & Gort)	Costello (Edmondstown) Blake (Killiaghan & Gort) Dowell (Co Roscommon)
Blake (Kilmeena)	Blake (Kilmeena)
Blake (Kiltullagh, Frenchfort & Vermount)	Blake (Waterdale & Vermount) French ( Moneen) Blake (Kiltullagh, Frenchfort & Vermount)	Frenchfort Vermount
Blake (Lisduff)	Blake (Lisduff)
Blake (Meelick)	Yelverton (Viscount Avonmore) Yelverton Blake (Meelick)	Meelick
Blake (Menlo)	Blake (Towerhill) Blake (Menlo)	Doon Menlo/Menlough Castle Blake Hill
Blake (Merlin Park)	Moore (Moorehall) Tighe (The Heath) Blake (Merlin Park) Golding/Goulding Ward (Shrule) Hodgson	Moyne Lodge Merlin Park Coolcon Castle
Blake (Rathville)	Blake (Furbogh) Daly (Killimordaly)	Rathville
Blake (Renvyle)	Browne (Marquess of Sligo) Lindsey Blake (Renvyle) Vesey O'Flaherty (Renvyle) Wilberforce	Lehinch Renvyle
Blake (Rockfield)	Blake (Rockfield)	Rockfield House
Blake (Ross Lodge)	Blake (Towerhill) Blake (Ross Lodge)	Ross Lodge
Blake (Sligo)	Blake
Blake (Springvale)	Blake (Springvale)	Springvale
Blake (Towerhill & Bunowen)	Blake (Towerhill) Geoghegan/O'Neill (Bunowen)	Oldhead Fisherhill Towerhill Bunowen Castle Benmore Carnmore
Blake (Tuam)	Blake (Garracloon) Cullinane Blake (Tuam)	Kilcloghan Cloonacauneen Castle Brooklawn Killeen Castle
Blake (Waterdale & Vermount)	Blake (Waterdale & Vermount) French ( Moneen) Blake (Kiltullagh, Frenchfort & Vermount)	Waterdale Vermount
Blake (Windfield)	Jameson Tighe (The Heath) Bowen Blake (Windfield)	The Heath Windfield
Blakeney (Abbert)	Blakeney (Abbert) Mitchell (Castle Strange)	Abbert Greenhills Dundermot
Blakeney (Holywell)	Blakeney (Abbert) Gunning (Co Roscommon) Blakeney (Holywell) Goodall	Holywell
Bland		Derryquin
Bland
Blaquiere/Blacquiere	Blaquiere	Castle Lodge Rindifin/Rhyndifin
Bodkin (Annagh)	Bodkin (Annagh) Bodkin (Castletown & Mountsilk) Hussey (Corkaguiny)	Annagh
Bodkin (Ballymacward)	Bodkin (Ballymacward) Johnston (Ahascragh)	Hampstead
Bodkin (Carrowbeg & Thomastown)	Bodkin (Carrowbeg & Thomastown) Smyth (Newgarden)	Summerville/Thomastown Bingarra
Bodkin (Castletown & Mountsilk)	Bodkin (Annagh) Daly (Dunsandle) Bodkin (Carrowbeg & Thomastown) Bodkin (Castletown & Mountsilk) Echlin Hall (Knockbrack)	Mountsilk Castletown Bingarra
Bodkin (Kilcloony)	Bodkin (Kilcloony) Bermingham/Birmingham (Lord Athenry) Irish Land Purchase and Settlement Company	Rahoon House Pallas Quarrymount Kilcloony
Bodkin (Roseberry)	Bodkin (Roseberry)	Roseberry House
Boland	Boland	Rosehill
Bolingbroke	Bolingbroke Graham Seymour Willington	Oldcastle
Bolton	Bolton	Abbeyland Cottage
Bond	Lewis Bond Bond (Carrownure)	Glasdrumman
Bond (Carrownure)	Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly) Hodson Bond (Carrownure) Greene (Galeybeg)	Carrownure House Galeybeg
Booth (Cloverhill)	Booth (Cloverhill) Cleaver	Cloverhill
Booth (Ebor Hall)	Booth (Ebor Hall) de Montmorency (Viscount Mountmorres)	Ebor Hall
Borough	Borough
Boswell	Geoghegan/O'Neill (Bunowen) Boswell Young (Doohulla)
Bourchier (Co Galway)	Bourchier (Co Galway)	Rathglass
Bourke (Ballynew)	Miller (Milford) O'Malley (Kilboyne) Law Life Assurance Society Bourke (Ballynew)	Ballynew House
Bourke (Belmullet)	Bourke (Belmullet)
Bourke (Bunacrower)	Bourke (Bunacrower) (Earl of Mayo) Bourke (Oory)
Bourke (Carrowkeel)	Bourke (Carrowkeel) Comyn (Woodstock) Bourke (Curraghleagh & Rahasane)	Carrowkeel
Bourke (Castleburke)	Tuohy Browne (Marquess of Sligo) Bourke (Castleburke)	Castleburke
Bourke (Curraghleagh & Rahasane)	Kirwan (Dalgan) Bourke (Carrowkeel) Joyce (Rahasane) Bourke (Curraghleagh & Rahasane)	Curraghleagh Rahasane
Bourke (Heathfield)	Bourke (Heathfield)	Heathfield
Bourke (Holywell)	Bourke (Holywell) Browne/Dillon-Browne (Glencorrib)	Holywell
Bourke (Killala)	Knox (Castlereagh) Bourke (Killala)	Killala Castle
Bourke (Kinturk)	Bourke (Kinturk)	Kinturk
Bourke (Oldtown)	Malone Dillon (Feamore) Bourke (Carrowkeel) Bourke (Oldtown)	Oldtown Rockfort
Bourke (Oory)	Kirwan (Dalgan) McManus (Barleyhill) Bourke (Bunacrower) (Earl of Mayo) Netterville Shee (Dunmore) Bourke (Oory) Hobart-Hampden (Earl of Buckinghamshire)	Oory/Coarsefield
Bournes	Fawcett (Ballykinlettragh) Shaen Bournes Wallace	Rossport House
Bowen (Annefield)	Elwood Blake (Towerhill) Bowen Blake (Windfield) Cromie Brannick	Annefield
Bowen (Hollymount)	Ruttledge Bowen	Greaghans Kilrush Gardenfield
Bowen (Mantua)	Grace Bowen (Mantua)	Mantua
Boycott	Crichton, Earl of Erne Boycott	Lough Mask House
Boyd (Boyle)	Boyd (Boyle)	Cuiltyconeen House
Boyd (Mount Gordon)	Boyd	Crosspatrick Mount Gordon
Boyd (Tireragh)	Boyd (Tireragh)	Cottlestown Finned (Tireragh) Rinroe
Boyse	Holmes (Rockwood) Boyse
Brabazon	Brabazon Higgins (Westport)	Brabazon Park Oatfield Birch Grove
Bradstreet	Gerrard Bradstreet
Brady (Carrigallen)	Brady (Carrigallen)
Brady (Johnstown)
Brady (Williamstadt)	Croasdaile Brady (Williamstadt) Sampson (Williamstadt) Brady/Brady Browne	Williamstadt
Brady/Brady-Murray	Mahon (Northampton) Brady/Brady-Murray	Northampton
Brannick	Browne/Dillon-Browne (Glencorrib) Ruttledge Brannick	Annefield Beechgrove
Brassey	Brassey O'Donel
Bredin	Reilly (Glennamaddy) Bredin
Brereton	Brereton
Brett (Killasser)	Nolan/Ferrall (Lugboy) Brett (Killasser)
Brett (Tobercurry)	Brett (Tobercurry)	Tobercurry
Brigges
Brinkley	Lloyd Brinkley	Fortland Bunowna Kilmacurkan Ardagh Lissycoyne
Broderick	Broderick
Bromhead	Wood Bromhead	Cairnsfoot
Broughton	Broughton
Browne (Ardskea & Cooloo)	Browne (Brownville) Browne (Ardskea & Cooloo) Browne (Carrownacregg West) O'Kelly (Creeraun)	Ardskeamore Cooloo
Browne (Breaghwy)	Browne (Breaghwy)	Breaghwy Lodge
Browne (Brownesgrove)	Browne (Brownesgrove) Browne (Tuam) Joyce (Joycegrove)	Joycegrove/Brownesgrove
Browne (Brownestown)	Browne (Neale) (Baron Kilmaine) Browne (Brownestown)	Brownestown
Browne (Brownhall)	Browne (Brownhall)	Brownhall
Browne (Brownville)	Martin (Ballynahinch) Browne (Brownville)	Riverview Brownville
Browne (Carrownacregg West)	Ruttledge Browne (Ardskea & Cooloo) Concanon Browne (Carrownacregg West)	Carrownacregg West
Browne (Castlemagarret)	Browne (Oranmore and Browne) Alliance Insurance Society	Castlemagarret Millbrook Ashford Castle Castlegar Cuillaun
Browne (Castlereagh)	Browne (Castlereagh)
Browne (Claran)	Carter (Annaghkeen) Browne (Claran)	Claran House
Browne (Claremount)	Browne (Marquess of Sligo) Blacker Browne (Claremount)	Claremount
Browne (Cloonfad)	O'Conor/O'Conor Don Browne (Cloonfad)	Cloonfad
Browne (Coolaran, Kilskeagh & Mountkelly)	Browne (Coolaran, Kilskeagh & Mountkelly) Mahon (Belleville) Kelly (Lisduff)	Kilskeagh Mount Kelly Coolaran
Browne (Fort Browne)		Fort Browne
Browne (Kilbracken)	Armstrong (Kilbracken) Browne (Kilbracken)	Kilbracken
Browne (Kirkullen)	Martin (Ballynahinch) Browne (Kirkullen)	Corcullen/Kirkullen House
Browne (Mount Browne)	Gunning (Co Roscommon) Conry (Cloonahee) Browne (Mount Browne) Browne (Newtown)	Mount Browne
Browne (Moyne)	Kelly (Newtown) Browne (Moyne) Kirwan (Moyne) Lynch (Garracloon)	Moyne
Browne (Moyvilly & Mounthazel)	Browne (Moyvilly & Mounthazel) Fetherstonhaugh Cuff (Esker) Eyre/Hedges Eyre (Galway)	Moyveela Mounthazel Mountbernard Esker Lodge
Browne (Neale)	Browne (Marquess of Sligo) Browne (Raheens) Browne (Neale) (Baron Kilmaine) Cromie	The Neale
Browne (Newtown)	Browne (Marquess of Sligo) Irwin (Leabeg & Beechwood) Browne (Mount Browne) Browne (Newtown)	Newtown Lisbride
Browne (Raheens)	Richey Browne (Raheens) Browne (Neale) (Baron Kilmaine)	Raheens
Browne (Rockfield)	Browne (Rockfield)	Rockfield House
Browne (Rosleague)	O'Flaherty (Renvyle) Browne (Rosleague) Fletcher Twining	Rosleague
Browne (Tireragh)	Browne (Tireragh)	Fortland
Browne (Treanlaur)	Laprimaudaye Browne (Treanlaur) Browne (Marquess of Sligo)	Treanlaur House or Lodge
Browne (Tuam)	Browne (Brownesgrove) Browne (Tuam)
Browne (Westport)	Browne (Marquess of Sligo)	Westport House Mount Browne Oldhead Boathaven Lodge Cherry Cottage Summerville/Villa Lodge Delphi Lodge Aasleagh Lodge
Browne (Woodstock)	Browne (Woodstock)	Woodstock
Browne/Beale Browne	Browne/Beale Browne
Browne/Browne Naghten (Annaghmore)	Browne/Browne Naghten (Annaghmore)
Browne/Dillon-Browne (Glencorrib)	Fair Browne/Dillon-Browne (Glencorrib) Higgins (Westport) Tighe (The Heath)	Turin Glencorrib Ellistron Castle
Bruen	Bruen	Castleturvin
Buchan	Johnston (Friarstown) Buchan	Strandhill Tawnahoney
Buchanan (Leitrim)	Buchanan
Buchanan (Prospect)	Bingham (Earl of Lucan) Buchanan	Prospect House
Buddicom	Carey McCallum Buddicom	Glenturk Lodge
Bunbury	Bunbury	Spiddle House
Burke (Ballybroder)	Burke (Ballybroder)	Ballybroder
Burke (Ballydugan)	Henry (Toghermore) Burke (Ballydugan) Kelly (Lisduff)	Ballydugan
Burke (Bekan)	Burke (Bekan)	Bekan
Burke (Burke's Court/Cloondaduv)	Burke (Moyglass) Burke (Burke's Court/Cloondaduv)	Meelick Burke's Court Clonco
Burke (Burkeville)	Burke (Burkeville)	Burkeville
Burke (Caltraghbeg)
Burke (Carrowroe)	Goff Burke (Carrowroe)	Carrowroe Park
Burke (Clanricarde)	Burke (Clanricarde) (Marquis of Clanricarde)	Portumna Castle Woodville House Rafarn House Fearmore Woburn Moat Earlstown Thornfield Burke's Court Oghilly Clooncona
Burke (Danesfield)	Burke (Danesfield)	Danesfield
Burke (Derrymaclaugha)	O'Flahertie (Lemonfield) Burke (Derrymaclaughna)	Derrymaclaughna
Burke (Glinsk)	Pollok Burke (Keeloges) Burke (Glinsk) Dowell Daly (Quansbury)	Glinsk House
Burke (Gortnamona)	Blake (Drum, Tully & Gortnamona) Burke (Gortnamona)	Gortnamona
Burke (Keeloges)	Bermingham/Birmingham (Lord Athenry) Trotter (Kilquain) Burke (Keeloges) Burke (Glinsk) Dennis (Bermingham House) McCormack (Tuam)	Quansbury Lodge/Stowlin Knocknagur
Burke (Killimer)	Burke (Killimer Castle) Browne (Brownestown) Daly (Killimordaly) Devereux	Killimer Castle
Burke (Kiltartan)	Burke (Kiltartan) Rosengrave (Rosingrave)	Normangrove Lisbrine House Mount Vernon Annagh Cottage (Kiltartan) Forthill Cottage
Burke (Marble Hill)	Burke (Marble Hill)	Marble Hill Oakmount Ballycorban Carrowroe Lodge Featherstone Lodge Curragh Knockdrum
Burke (Moyglass)	Burke (Moyglass)	Clonco Moyglass
Burke (Ower)	Burke (Ower)	Ower
Burke (St. Cleran's)	Burke (St. Cleran's) Maxwell (St. Cleran's)	St. Cleran's or Issercleran
Burke (Tiaquin)	Richardson Hall (Knockbrack) Burke (Tiaquin)	Tiaquin
Burke (Tintrim)	Burke (Tintrim)	Tintrim
Burne	Burne	Burnbrook
Burrowes	Stock Burrowes
Burrowes (Leitrim)	Burrowes (Leitrim)
Burrowes (Sligo)	Burrowes (Sligo)	Carrowcrin Greenfield Cottage
Burton (Burton Hall)	Burton (Burton Hall) Burton (Buncraggy & Carrigaholt)
Busby	Busby	Enfield
Butler (Bunnahow & Walterstown)	Butler (Cregg) Butler (Doon & Thornpark) Butler (Bunnahow & Walterstown)	Bunnahow Walterstown
Butler (Cregg)	Butler (Cregg) Lattey Butler (Bunnahow & Walterstown)	Ballygeagin House Cregg/Cregg Park Island/ Sallymount Seamount
Butler (Crocknaraw)	Graham (Ballynakill) Butler (Crocknaraw)	Crocknaraw/Rockfield House Garraunbaun
Butler (Doon & Thornpark)	Blake (Doonmacreena & Oranmore) Butler (Doon & Thornpark) McMahon (Clenagh)	Thornpark Ballyline Doon Glenwilliam
Butler (Lanesborough, Earl of)	Butler (Lanesborough, Earl of)
Butler (Roscommon)	Butler (Roscommon)
Butler (Winterfield House)	Butler (Winterfield)	Winterfield House
Butson	Butson	Clonfert Abbeyland Cottage Abbeyland House Cloonconra
Byrne/Burne (Curraghboy)		Curraghboy House
Caddell	Costello (Edmondstown) Caddell	Carrowreagh Finnor
Caldwell	Caldwell Wood (Tallag)	Tallagh
Callaghan (Cos Galway & Cork)	Callaghan
Callanan (Co Galway)	Callanan (Co Galway)	Newpark
Calvert	Calvert Walpole Conry (Cloonahee) Dillon (Roscommon)
Campbell	Campbell (Baron Stratheden and Campbell) Lynch (Lynch's Castle)
Campbell (Mountcampbell)	Rowley Campbell (Mountcampbell) Russell (Baron de Clifford) Southwell (Baron de Clifford)	Mount Campbell
Campbell (Roscommon)
Campbell (Sligo)	Campbell	The Hermitage Abbeytown
Cannon	Fair Miller (Milford) Cannon Lewin (Cloghans) Blake (Castlegrove)	Castlegrove
Capell	Capell (Earl of Essex) Neligan Martin (Cloonygormican) Battersby Fitzgerald (Cappagh)	Carrowroe Park Holywell Essex Lawn
Carey	Shaen Carey McCallum Buddicom	Pickle Point
Carleton	Carleton	Ross Beg
Carmichael	Crofton (Mohill) Carmichael	Lakefield
Carr (Lakeview)	Bellew (Mountbellew) Carr (Lakeview)	Lakeview
Carrick/Carrig	Rosengrave (Rosingrave) Carrick/Carrig	Rosemeade Ballylee Castle
Carroll (Cherryfield)
Carter	Bingham (Erris) Shaen Carter	Shaen Manor or Lodge Pickle Point Kilteany Lodge Kilmore
Carter (Annaghkeen)	Carter (Annaghkeen) Browne (Claran)	Moyne Hill Annaghkeen
Carter (Dromahaire)	Carter (Dromahaire)
Cassidy	Cassidy
Castletown
Castletown
Castletown
Caulfield	Caulfield	Ivy Lodge
Caulfield (Colamber Manor)	Caulfield (Colamber Manor)	Coolderry Cloonfinlough
Caulfield (Dunamon)	Williams (Co Roscommon) Caulfield (Donamon)	Dunamon Emlaghroyin Coolroghan Kilbegnet
Caulfield (Hon Henry)
Chambers	Crichton, Earl of Erne Chambers	Cloverhill
Chambers	Chambers (Kilboyne)	Kilboyne
Champagne	Lyster Champagne	Milltown
Chapman	Gore (Earl of Arran) Chapman (Baronet)
Cheevers (Killian)	McDonnell (Carnacon) Cheevers (Killian)	Fisherhill Turlough Killian
Chichester	Balfe Chichester Nagle (Ballygriffin & Annakisha) Grehan (Clonmeen)	Runnamoat
Church	Church	Summerhill
Churcher	Thorngate Churcher
Clarke (barony of Leitrim)	Clarke (barony of Leitrim)
Clarke (Dunmore)
Clarke (Graig Abbey)	Cromie Clarke (Graig Abbey) Bodkin (Kilcloony) Warburton (Kilconnell)	Thomastown Graig Abbey
Clarke (Kilconnell)	McDonagh (Kilconnell) Clarke (Kilconnell)	Lowville Ballyglass
Cleaver	Wynne Booth (Cloverhill) Cleaver
Clements	Clements (Leitrim, Earls of.) Clements & Caulfield (Earls of Leitrim & Charlemont) Cooper (Killenure)	Lough Rynn Glenboy Gort House Brooklawn or Clooncoe
Clements & Caulfield	Fair Clements (Leitrim, Earls of.) Gildea Bermingham/Birmingham (Rosshill) Clements & Caulfield (Earls of Leitrim & Charlemont)	Rosshill
Clendining	Browne (Marquess of Sligo) Clendining FitzGerald (Turlough) Browne (Oranmore and Browne)	Rusheen/Thomastown
Clive (Croy Lodge)	O'Donel Browne (Marquess of Sligo) Birch Clive	Croy Lodge
Clive (Rock House)	O'Donel Browne (Marquess of Sligo) Birch Clive	Rock House Tallagh
Close	Close	Derrymaclaughna
Cogan (Rockbrook)	Phibbs Irwin (Flower Hill) Cogan	Flower Hill Rockbrook Lisconny
Coghlan	Lynch Blosse Browne (Oranmore and Browne) Coghlan	Brees/Brize Cloonboy
Colleran	Colleran Knox (Mount Falcon)	Bunnacranagh
Collins	Collins
Collum	Orme (Owenmore) Collum
Comerford	Gregory Comerford Daly (Dalysfort)	Doorus House Rineen Ballykeel
Compton (Willsgrove)	Compton (Willsgrove) Compton (Limerick)	Fortwilliam (Castlereagh) Willsgrove
Comyn (Kilconnell)	Comyn (Kilconnell) Cummins	Ballinderry (Comyn) Ryefield
Comyn (Woodstock)	Bourke (Carrowkeel) Martin (Ballynahinch) Comyn (Woodstock) Morris (Baron Killanin) Lynch (Barna) Blake (Drum, Tully & Gortnamona)	Woodstock Killeen Kilcornan Sans Souci Holywell/Hollywell House
Concanon	Betagh/Beytagh Concanon Joyce (Corgary) Browne (Carrownacregg West)	Rockfield House Carrownacregg West Waterloo Lodge
Coneys (Clifden)	Miller (Milford) McDonnell (Carnacon) Hardiman Coneys (Clifden) D'Arcy (Kiltullagh & Clifden Castle)	Streamstown
Coneys (Waterville)	Coneys (Waterville)	Waterville
Conmee	Conmee	Kingsland
Connaghton	McKay Connaghton
Connell	Connell
Connellan	Blake (Hollypark) Connellan
Connolly	Johnston (Kinlough) Connolly	Mount Prospect
Connolly (Cloonbern)	Connolly (Cloonbern)
Conolly (Castletown)	Simpson (Clooncorick) Conolly (Castletown)
Conolly (Shannon Hill & Cargin)	Conolly (Shannon Hill)	Shannon Hill (Derryvunlam) Barnavihall
Conroy	Conroy	Bettyfield
Conry (Cloonahee)	Calvert Conroy Conry (Cloonahee) Browne (Mount Browne) Hague	Cloonahee Moss Hill
Cooke	Cooke	Kilturra
Coolohan/Colohan	Coolahan/Colohan	Balleighter Cottage (Kilcloony)
Cooper	O'Hara (Annaghmore) Cooper (Coopershill)	Seafort House Coopershill Tanzyfort
Cooper (Markree)	Cooper Cooper (Dunboden Park)	Markree Castle Elsinore Union Markree Observatory Tully More House Castletown (Ballysadare) Quarryfield
Cooper (Tuam)
Coote	Coote (Mountrath Earl of) McLoughlin (Castlecoote) Coote (Ash Hill & Bearforest)	Castlecoote Emlaghkeadew Mount Prospect Sandfield House Coote Hall Creta
Coote (Lord Collooney)	Coote (Lord Collooney)	Bellamont House
Cope	Cope
Copinger	French (Elphin) Copinger
Corbishley	Corbishley	St. John's
Cormack/Cormick	Walsh (Castlehill) Cormack/Cormick Coyne	Castlehill
Cornwall	Cornwall
Corr	Goff French (Cloonyquin) Corr Sandys	Derrane
Corscadden	Corscadden	Glenade Hollymount (Drumahaire) Eldon Lodge
Costello (Cloghansmore)	Costello (Cloghansmore) Lewin (Cloghans)	Cloghansmore
Costello (Edmondstown)	Costello (Edmondstown) Caddell Blake (Killiaghan & Gort)	Edmondstown Castlemore Kilfree
Cottingham	Cottingham Regan Doig	Costello Lodge Corrib View
Cotton	Balfe Cotton Hawkes (Brierfield)	Arm Lodge Longford Glebe Brierfield
Coulter (Dundalk)	Coulter (Dundalk)
Courtney	Bourke (Bunacrower) (Earl of Mayo) Courtney
Courtney (Athenry)	Courtney (Athenry)	Prospect
Cowan	Cowan	Derrywillan House Tully Prospect (Meelick)
Cox	Cox	Bunreagh Gillstown
Coyne	Walsh (Castlehill) Jones (Ardnaree) Cormack/Cormick Coyne	Wood Park Kilteany Lodge
Coyne/Kyne	Fair Knox (Castle Lackan) Coyne/Kyne Trinity College, Dublin, Provost and Fellows	Fortville
Craig	Craig	Craig's Hotel Pollboy
Crampton	D'Arcy ( Houndswood) Carter Crampton	Garracloon
Crean	Crean	Ballinvilla
Crean	Lynch/Crean Lynch Crean (Hollybrook)	Hollybrook Newborough
Creighton	Creighton
Crichton	Dodwell Crichton	Carrowgarry Dirk Lodge Mount Dodwell
Crichton (Erne)	Crichton, Earl of Erne Chambers Boycott Walsh (Kilmacowen)	Cloverhill Breeogue Lough Mask House
Croasdaile	Miller (Milford) Croasdaile Usher Shaw (Newford) Waddington Molony (Kiltanon) Ringrose (Moynoe)
Crofton (Croftonpark)	Deane Crofton (Croftonpark) Hunter	Croftonpark
Crofton (Mohill)	Crofton (Mohill) Crofton (Co Cork)	Mohill Castle Lakefield Aghamore House Lurga House Abbey View House
Crofton (Mote Park)	Crofton (Sligo) Somerville (Mount Nugent) Crofton (Mote Park) O'Conor (Toomona)	Mote Park Ballymurray Lissadorn Toomona
Crofton (Sligo)	Crofton (Sligo) Crofton (Mote Park)	Longford House Corkhill House Mote Park
Croghan (Kilbride)	O'Conor (Dundermott) McLoughlin (Castlecoote) Croghan	Drumdaff
Cromie	Fynn Browne (Neale) (Baron Kilmaine) Bowen Cromie	Annefield The Neale Rathgranagher
Cronyn	Cronyn
Crooks	Thorngate Crooks	Castleffrench
Crotty	Blake (Belmont) Crotty	Kinnewry House
Crotty (Mountplunkett)	Grehan Crotty (Mountplunkett) Plunkett (Mountplunkett)	Mountplunkett
Crowe	Handy Crowe	Rosepark House Coololla/Coololah
Crown Life Insurance Company	Grehan Crown Life Insurance Company
Cruise/Cruice	Thorngate Burke (Marble Hill) Galbraith Cruise Bellew (Mountbellew) Kelly-Egan	Cruise Lawn Greenville Fairfield (Kilgerrill) Bredagh/Breda Camlagh Ardkeenan
Cuff	Gore (Earl of Arran) Cuff (Baron Tyrawley) Knox (Castle Lackan) Browne (Marquess of Sligo) Jordan (Oldhead) Cuff (Esker) Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly)	Creagh Elmhall Deel Castle Castle Gore Castle Lackan Ballinrobe Castle
Cuff (Esker)	Browne (Moyvilly & Mounthazel) Cuff (Baron Tyrawley) Cuff (Esker)	Esker Lodge
Cuffe (Tireragh)	Cuffe (Tireragh)	Farrenmacfarrell Cuffe House or Camcuil
Cullen	Cullen	Glenade Corry Lodge Skreeney Rockwood Fortland Cottage
Cullen (Kilkerrin)	Parke Cullen
Cullinane	Fair Cullinane	Mount Browne Derrymaclaughna Caherhugh Cloonacauneen Castle
Cunningham (Lickmolassy)	Cunningham (LIckmolassy)	Oakley Park
Cunningham (Port)	Cunningham (Port)	Port Cartown
Curtis	Curtis Howley
Curtis	Curtis (Roscommon)	Coolmeen Ballymurray
Cusack	Cusack
D'Arcy (Ballinlass)	Greene (Co Galway) ffrench (Claremont) Kelly (Muckloon) D'Arcy (Ballinlass)	Ballinlass
D'Arcy (Castlepark)	D'Arcy (Kiltullagh & Clifden Castle) Kelly (Creagh) Kelly (Cargins) D'Arcy (Castlepark)	Castle Park House Cargins Park
D'Arcy (Clonrush)	D'Arcy (Newforest) D'Arcy (Clonrush)
D'Arcy (Houndswood)	D'Arcy ( Houndswood) Dawson Crampton Kirwan (Carnaun & Dalgin)	Houndswood
D'Arcy (Kiltullagh & Clifden Castle)	Guinness D'Arcy (Kiltullagh & Clifden Castle) Eyre (Clifden) Lighton	Clifden Castle Kiltullagh House
D'Arcy (Newforest)	D'Arcy (Newforest) Cheevers (Killian) D'Arcy (Wellfort) D'Arcy (Clonrush) Kelly (Fiddaun) O'Brien (Inchiquin Castle) (Baron Inchiquin, Earl of Inchiquin, Marquess of Thomond)	Fisherhill Newforest Rockvale
D'Arcy (Oranmore)	D'Arcy (Oranmore)	Rockhill House
D'Arcy (Wellfort)	D'Arcy (Newforest) D'Arcy (Wellfort)	Wellfort Castletown
D'Arcy (Woodville)	Burke (Clanricarde) (Marquis of Clanricarde) D'Arcy (Woodville)	Woodville House
Dalton	Dalton Kelly (Lisduff)	Rahara
Daly (Ballygaddy)	Lally Daly (Ballygaddy)	Ballygaddy Fearmore
Daly (Boghadoon)	Palmer, Baronet Daly (Boghadoon)
Daly (Callow)	Daly (Callow)
Daly (Castledaly)	Daly (Castledaly) Daly (Dalysgrove)	Castledaly Cooleeney/Coolinny/Cooleeny
Daly (Dalysgrove)	Daly (Castledaly) Daly (Dalysgrove)	Dalysgrove
Daly (Dalystown)	Smyth (Masonbrook) Mason (Masonbrook) Daly (Dalystown)	Dalystown/Dalyston
Daly (Dunsandle & Carnakelly)	Daly (Dunsandle) French (Frenchbrook)	Dunsandle Ballynahivnia Attymon House Lismore Carnakelly Carrowroe House Killough
Daly (Eyrecourt)	Daly (Eyrecourt)	Woodview Lismore Castle
Daly (Hollyhill)	Daly (Hollyhill)	Hollyhill
Daly (Killimordaly)	Burke (Killimer Castle) Daly (Killimordaly) Devereux	Benmore Rathville Raford Killimer Castle Clooncah
Daly (Kiltartan)	Daly (Kiltartan) Ireland
Daly (Quansbury)	Bermingham/Birmingham (Lord Athenry) Trotter (Kilquain) Burke (Keeloges) Burke (Glinsk) Richards (Ballymoe) Daly (Quansbury)	Quansbury Lodge/Stowlin
Daly (Raford)	Bodkin (Annagh) Daly (Raford) Blake (Furbogh)	Raford Gortakeeran Abberanville
Dames	Dames
Davies (Dunkellin)	O'Flaherty (Lisdonagh) Davies (Dunkellin)	St. Michael's/ Moneyteigue
Davies (Kentstown)	Thorngate Davies (Kentstown) Gerrard Davis/Davies (Kilconnell)	Kentstown
Davis	Bingham (Earl of Lucan) Davis	Altamont Villa
Davis (Carrowmore)	Gunning (Co Roscommon) Davis (Carrowmore)	Carrowmore
Davis (Frenchpark)	Davis (Frenchpark) Davis/Davies (Kilconnell)	Cloonshanville
Davis (Lanesborough)	Davis (Lanesborough)
Davis (Martinstown)	Digby (Drumdaff) Davis (Martinstown)	Martinstown Lissadorn
Davis/Davies (Kilconnell)	Ireland Davis (Frenchpark) Davis/Davies (Kilconnell)	Ballymantan/Ballynamantan Hampstead Rosslevan
Davy	Davy	Curragh
Davys	Davys	Rose Hill (Sligo)
Dawson	D'Arcy ( Houndswood) Dawson	Houndswood
Day
de Basterot	de Basterot (Count de Basterot) Ffrench (Cloghballymore)	Doorus House Neptune Vale Doorus Cottage
de Carter	de Carter
de Courcey	de Courcey
de Heizler	de Heizler
de Montmorency	Ruttledge de Montmorency
de Montmorency (Ebor Hall)	Booth (Ebor Hall) de Montmorency (Viscount Mountmorres)	Ebor Hall
de Stacpoole	Browne (Moyvilly & Mounthazel) de Stacpoole	Mounthazel
Deane	Skerrett McDermott (Coolavin) Beere Deane McManus (Barleyhill) Henry (Toghermore)	Carrowgowan Castlemoyle
Deely	Deely	Killaghbeg Killaghbeg
Delahunt	Delahunt	Huntly
Dennis (Bermingham House)	Bermingham/Birmingham (Lord Athenry) Trotter (Kilquain) Dennis (Bermingham House)	Fiddaun Lodge Bermingham/Birmingham House Carrowroe House
Dering	Shee (Dunmore) Dering	Dunmore House
Devenish	King (Drumsna) Devenish Toler (Bloomfield)	Rush Hill Mount Pleasant Cloonfinlough
Devereux	Daly (Killimordaly) Devereux	Killimer Castle
Dick	Dick Handcock	Carrowntryla
Dickins	McLoughlin (Newfield) Dickins McCormack
Dickson	Dickson	Woodville Duncarbry Lodge Tullaghan House
Dickson & Squirl (Castlereagh)	Dickson & Squirl	Caher
Digby (Aran)	Guinness Digby (Aran) Harris
Digby (Drumdaff)	Digby (Drumdaff) Davis (Martinstown)	Drumdaff Martinstown
Digby (Erris)
Digby (Moat Lodge)	Digby (Moat Lodge)	Moat Lodge
Digby (Tireragh)	Wood Digby	Drummartin
Digges (Kiltormer)	Digges	Chilhame/Chilham
Dignan/Duignan	Blacker Roycroft Dignan/Duignan	Danesfort (Roscommon) Ballina Lisbride
Dillon	Dillon (Viscount) Strickland	Castlemore Brooklawn Loughglynn Coolagarry Palmfield
Dillon	Dillon (Earl of Roscommon)	Ballycummin
Dillon (Clonbrock)	Dillon (Clonbrock) (Lord Clonbrock) O'Kelly (Gallagh & Ticooly) Dickson (Kildimo) Greene (Old Abbey)	The Cottage Ticooly Balleighter Clonbrock Ballybaun Doon House South Park Creggaun Clooncannon/Cloncannon/Runnamead Caher Kylebrack
Dillon (Dillon's Grove)	Dillon (Dillon's Grove)
Dillon (Feamore)	Malone Dillon (Feamore) Crofton (Mote Park)
Dillon (Johnstown)	Pim Dillon (Johnstown) Kelly (Johnstown)	Johnstown Kilbegly House
Dillon (Lissonuffy)	Baldwin Dillon (Lissonuffy)
Dillon (Mount Dillon)	Russell (Slane) Dillon (Mount Dillon)	Mount Dillon Ballagh Cloonmurray
Dillon (Roscommon)	Calvert Taaffe (Foxborough) Begg Dillon (Roscommon)
Dodwell	Gethin Dodwell Crichton Fowler	Kevinsfort Earlsfield Knockranny Carrowgarry Mount Dodwell
Doig	St George (Tyrone) Doig	Corrib View
Dolan	Dolan	Newtown Manor
Dolphin	Dolphin	Ballybroder Danesfort (Loughrea) Turoe Corr Lodge Ormond View
Domvile	Trench (Heywood) Domvile Waithman	Moyvannan Castle
Donnelan/Donelan/Donnellan	Donnelan/Donelan/Donnellan	Ballydonelan Castle Balleighter Killagh Nutgrove
Donnellan	Donnellan Donnellan (Kilconnell)	Hillswood Seamount
Donnellan (Cloghan)	Magan Donnellan (Cloghan) McIvor	Cloghan Castle
Donnellan (Kilconnell)	Donnellan (Kilconnell)	Hillswood
Donnellan (Spiddle)
Doolan	Doolan	Fairy Hill
Dowdall	Pakenham Dowdall
Dowell (Co Roscommon)	Blake (Killiaghan & Gort) Dowell (Co Roscommon)	Gort
Dowell (Mantua)	Grace Dowell (Mantua)	Mantua
Dowell (Skehaghard)	Pollok Burke (Glinsk) Dowell	Skehaghard
Dowling	Dowling	Newborough (Castlereagh)
Downing	O'Dowd Downing McLoghry	Bunnyconnellan Cottage
Drought	Kelly (Cargins) Drought	Cargins Park
Drummond	Sewell Drummond (Earl of Perth and Melfort)
Duckworth	Duckworth	Mount Erris
Duggan	Duggan	Cloonkea
Duggan (Moycullen)	Law Life Assurance Society Duggan (Moycullen)
Duke	Duke	Newpark Branchfield (Duke) Kilcreevin Kilmorgan
Duncan (Kylemore)	Eyre (Clifden) Duncan (Kylemore)	Kylemore House
Dundas	Dundas (Zetland Marquis of) Kincaid
Dundas (Galway)	Dundas (Galway)
Dunn (Sligo)	Dunne (Leyny)	Castlegal House Glinny House
Dunne	Dunne
Dunne (Leitrim)	Dunne (Leitrim)
Durkan	Harkan/Horkan Durkan Ruttledge
Duvally	Duvally
Eastwood	Graham (Ballynakill) Henry (Kylemore) Eastwood	Addergoole
Eccles	Eccles	Moneygold
Echlin	McNamara Palmer, Baronet Bodkin (Castletown & Mountsilk) Echlin
Egan (Annaghdown)
Egan (Clonrush)	Sampson (Williamstadt) Egan	Drummaan Williamstadt Knockbrack Moneenroe
Egan (Corbally)	Plunkett (Castleplunket) Egan (Corbally)	Corbally
Egan (Duniry)	Trench (Garbally) (Clancarty, Earl of.) Egan (Duniry)	Lime Hill Cartron (Duniry)
Egan (Kilkerrin)
Egan (Kiltartan)	Egan (Kiltartan)
Ellis	Ellis Bennison	Ward House Lodge
Ellis (Ballymoe)
Ellis (Letterfrack)	Ellis (Letterfrack) Hall (Letterfrack) Graham (Ballynakill)	Letterfrack
Ellis (Tynagh)	Ellis (Tynagh)	Lisduff
Ellison	Bingham (Earl of Lucan) Ellison	Castletown Hawthorn Lodge Rocklands Coolagarry
Elwood (Roscommon)	Elwood Lloyd (Croghan)	Ballymore Knockadoo
Elwood (Strandhill)	Elwood Guinness Roberts Lynch (Ballycurrin)	Strandhill Kinlough Annefield Ashford Castle
Ennis	Malone Ennis
Ensor	Ensor	Cottage Vale
Erasmus Smith Schools, Governors (Galway)	Joyce (Mervue) Lynch/Wilson Lynch (Renmore & Duras) Erasmus Smith Schools, Governors of	Murroogh House
Evans (Ballymacward)	Evans (Ballymacward)	Carrownea
Evans (Belgarrow)	McDermott (Cloongee) Evans (Belgarrow) Strogen McGloin	Dove Hall Carns (Kilmacteige)
Evans (Cross House)	Fitzgerald/Vesey Fitzgerald Evans (Cross House)	Cross House
Evans (Leitrim)	Evans (Leitrim)
Everard	Shaen Richards (Barranagh) Everard
Eyre (Burke Eyre)	Eyre (Burke Eyre)	Cloon
Eyre (Clifden)	D'Arcy (Kiltullagh & Clifden Castle) Eyre (Clifden)	Clifden Castle
Eyre (Eyrecourt & Eyreville)	Eyre (Eyrecourt & Eyreville)	Cappaluane Glebe Eyrecourt Castle Woodview Moorfield House Earlstown Cloonkea Coolbeg Gortnaraheen Glebe Mount Pleasant (Kiltormer) Eyreville Gortnamona Chesterfield
Eyre/Hedges Eyre (Galway)	Browne (Moyvilly & Mounthazel) Hodgson Eyre/Hedges Eyre (Galway) White/Hedges White (Earl of Bantry)	Plassey Mount Hedges Macroom Castle Kilcrea
Fahy (Kilconnell)	Fahy (Kilconnell)	Woodberry House (Kilconnell)
Fair (Clonbur)	Fair Clements (Leitrim, Earls of.) Hodson	Fairhill
Fair (Creggagh)	Bingham (Earl of Lucan) Fair Ruttledge Cannon	Marino Lodge Creggagh
Fair (Fortville)	Fair Browne/Dillon-Browne (Glencorrib) Cuff (Baron Tyrawley) Ruttledge Bowen Coyne/Kyne	Bushfield Carravilla Creggagh Fortville Millmount House
Fair (Levally)	Bingham (Earl of Lucan) Fair Ruttledge Simpson (Cloonnagashel) Cullinane	Levally Cloonacauneen Castle
Fallon (Ballina)	Fallon (Ballina)	Cloonagh Ballina
Fallon (Runnamoat)	Gerrard Fallon (Runnamoat)	Netterville Lodge Runnamoat
Faris	Faris	Shannon Lodge
Farrell	Farrell Shaen Bournes
Faulkner	Bingham (Earl of Lucan) Faulkner Sheridan	The Grove
Fawcett (Ballykinlettragh)	Knox (Castlereagh) Fawcett (Ballykinlettragh) Watts Bingham (Erris) Bournes	Ballykinlettragh Ballinglen Cottage
Fawcett (Co Roscommon)	Fawcett (Co Roscommon)	Raheen
Fawcett (Lecarrow)	Fawcett Buchan	Strandhill
Fawcett (Moneygold)	Fawcett	Moneygold
Fenton	Fenton	Castletown
Fenton (Dromore)	Fenton Lougheed	Dromore
Ferrall (Co Roscommon)	Nolan/Ferrall (Lugboy) Ferrall Taaffe (Woodfield) Lyster Irwin (Leabeg & Beechwood) Ormsby (Tobervaddy, Shrulegrove & Grange) Hughes (Co Roscommon) Kincaid	Moylurg House Dooneen Beechwood Ballyglass Bloomfield
Ferrall/Carmichael-Ferrall	Ferrall/Carmichael-Ferrall
Fetherston	Fetherston (Ardagh)
Fetherston/Fetherstonhaugh (Derryhivney)	Fetherston/Fetherstonhaugh (Derryhivney)	Derryhivney Gortaha House
Fetherstonhaugh	Browne (Moyvilly & Mounthazel) Fetherstonhaugh Orme (Abbeytown & Glenmore)	Glenmore
Ffolliott	ffolliott	Hollybrook Colgagh House
ffrench (Ballinamore)	ffrench (Castle ffrench) (Baronet)	Ballinamore House or Curraghboy Lodge Ballinlass St Brendans
ffrench (Castle ffrench)	ffrench (Castle ffrench) (Baronet) Thorngate Fletcher ffrench (Claremont)	Castleffrench
ffrench (Claremont)	Booth (Ebor Hall) ffrench (Castle ffrench) (Baronet) Fox Beytagh/Beatty ffrench (Claremont) D'Arcy (Ballinlass)	Claremont
Ffrench (Cloghballymore)	Ffrench (Cloghballymore)	Doorus House Cloghballymore
Ffrench (Monivea)	Ffrench (Monivea)	Monivea Corrandoo Glennagloughaun North
Ffrench (Rahasane)	ffrench (Rahasane) Nagle (Ballygriffin & Annakisha)	Rahasane
Ffrench (Templetogher)	Ffrench (Templetogher)
FitzGerald (Cappagh)	Capell (Earl of Essex) Fitzgerald (Cappagh)	Cappagh
Fitzgerald (Carrick-on-Shannon)	Fitzgerald (Carrick-on-Shannon)	Newbrook
FitzGerald (Turlough)	FitzGerald (Turlough)	Rockfield Charleville Turlough Park Turlough House
Fitzgerald/Vesey Fitzgerald	Fitzgerald/Vesey Fitzgerald Evans (Cross House) Stannus McDonnell (Dunmore) Fitzgerald/Foster Vesey Fitzgerald (Moyriesk) Fitzgerald (Horsham)	Oranbeg Cross House
Fitzmaurice	Fitzmaurice Domvile	Lagaturrin
Fitzpatrick	O'Flaherty (Knockbane) Fitzpatrick	Knockbane
Fitzpatrick (Leitrim)	Fitzpatrick (Leitrim)
Flanagan (Eyrecourt)	Flanagan (Eyrecourt)	Woburn
Flanagan/Woulfe Flanagan	Flanagan/Woulfe Flanagan Woulfe (Teermaclane)	Rathtermon Drumdoe
Fleming	Phibbs Fleming	Rathtermon Roadstown Old Rock Abbeyville Glebe West
Fleming (Gorthlyon)	Fleming (Gorthlyon)
Fletcher	ffrench (Castle ffrench) (Baronet) Browne (Rosleague) Fletcher
Flood	Flood
Forbes	Forbes (Granard, Earl of)	Georgia
Forbes (Raheen)	O'Hara (Raheen) Forbes (Raheen)	Raheen
Forde	Knox (Castlereagh) Forde
Foreman	Geoghegan/O'Neill (Bunowen) Foreman
Forster (Blake Forster)	Thorngate Forster (Blake Forster) Blake (Ballyglunin) McNevin	Clooneene or Ashfield Rosepark House Castle Lodge Hermitage or Neptune Corr Lodge Ballykeel Rathorp
Fosbery (Co Roscommon)	Fosbery (Clorhane) Fosbery (Co Roscommon)
Fowler	Dodwell Fowler
Fox	Fox ffrench (Claremont)	Lakefield
Frazer	Frazer	Annagh Lodge
Freer	Freer
French (Annaghmore)	Browne/Browne Naghten (Annaghmore) French (Annaghmore)
French (Ashfield)	French (Ashfield)	Clooneene or Ashfield
French (Barnaboy)
French (Boyle)	French (Boyle)	Kilateasheen/Kilteasheen
French (Brooklodge)	Blake (Ballyglunin) French (Brooklodge) French (Tyrone)	Brooklodge
French (Carrarea)
French (Cloonyquin)	French (Tyrone) French (Cloonyquin) Corr Taaffe (Foxborough)	Cloonyquin Foxborough
French (Corgary)	French (Corgary) Joyce (Corgary)
French (Cuillaun)	Browne (Oranmore and Browne) Rush French (Cuillane)	Cuillaun
French (Elmhill)	French (Elmhill)	Elmhill
French (Elphin)	French (Elphin) Copinger
French (Errit Lodge)	French (Frenchpark) (Baron de Freyne) French (Errit Lodge) Moore/O'Moore (Cloonbigny) Ward (Taghmaconnell)	Errit Lodge
French (Fort William)		Fort William/Fort Lyster
French (Frenchbrook)	Daly (Dunsandle) French (Frenchbrook)
French (Frenchgrove)	French (Frenchgrove)	Frenchgrove
French (Frenchlawn & Frenchbrook)	Glancy/Glancey French (Frenchlawn & Frenchbrook) O'Conor (Toomona)	Rocksavage Frenchlawn Toomona
French (Moneen)	Blake (Waterdale & Vermount) French ( Moneen)	Vermount
French (Moycullen)	Campbell (Baron Stratheden and Campbell) Lynch (Lynch's Castle) French (Moycullen)	Moycullen Lodge
French (Portacarron)	Nolan (Ballinderry) French (Portacarron)	Portacarron
French (Prospect)	Franch (Prospect)	Prospect (Meelick)
French (Rocklawn)	French (Rocklawn)	Rocklawn
French (Tulsk)	French (Frenchpark) (Baron de Freyne) French (Tulsk)
French (Tyrone)	St George (Tyrone) French (Brooklodge) French (Tyrone) French (Cloonyquin)	Tyrone
French /ffrench (Frenchpark)	French (Frenchpark) (Baron de Freyne) French (Errit Lodge) French (Tulsk)	Cuilmore French Park Oakport Caher Errit Lodge Ratra & Stables Sheepwalk Cloonshanville Rathkeery Glebe Derry Lodge
French Brewster	French (Frenchpark) (Baron de Freyne) French-Brewster	Woodbrook House
French/ffrench (Frenchfort)	French/ffrench (Frenchfort)	Frenchfort
Frewen	Frewen Geoghegan/O'Neill (Bunowen) D'Arcy (Kiltullagh & Clifden Castle) Geraghty	Munga Lodge
Fry	Fry	Havarine Cottage Frybrook House
Fury	Fury/Furey	Doonally Castle Dargan Castle Lodge Arnasbrack
Fynn	Fynn Browne (Marquess of Sligo) Chambers (Kilboyne) Thomson	Ballymacgibbon House Moytura
Gabbett (Co Galway)	Gabbett (Co Galway)
Galbraith	Galbraith Cruise	Cappard Thornfield
Gallagher	Gallagher
Galway	Galway	Clooncah
Gamble/Gambell	Bingham (Erris) Shaen Gamble/Gambell	Surgeview
Ganly	Ganly
Gannon	Gannon	Lissygreaghan
Gardiner (Courthill)	Gardiner	Courthill
Gardiner (Farmhill)	Cuff (Baron Tyrawley) Gardiner	Farmhill Tonroe
Gardiner (Tirerrill)	King (Kingston, Earls of , Lords Lorton) Gardiner (Tirerrill)	Tower Hill
Garnett	Garnett	Arm Lodge
Garvey (Murrisk)	Garvey	Murrisk Lodge
Garvey (Tully)	Browne (Marquess of Sligo) Garvey O'Dowd (Tully)	Tully Lodge
Gaven	Gaven	Annagh Lodge
Gaynor		Roxborough
Geoghegan (Killoran)	Geoghegan (Killoran)	Dartfield
Geoghegan/O'Neill (Bunowen)	Blake (Towerhill) Geoghegan/O'Neill (Bunowen) Smyth (New Park) Foreman Boswell	Bunowen Castle
Geraghty	Frewen Geraghty
Gerrard	Gerrard Netterville Fallon (Runnamoat) Bradstreet	Netterville Lodge Woodbrook
Gethin	Gethin	Percymount Grange/Primrose Grange Kevinsfort Earlsfield Ballindoon House Holywell Derroon House Drumcliff
Gibbings (Co Mayo)	Smith (Newfield) Gibbings
Gibbon	Townsend Gibbon
Gibbons	Gibbons
Gildea	Bingham (Earl of Lucan) Gildea Clements & Caulfield (Earls of Leitrim & Charlemont)	Portroyal Cloonnagashel Clooncormick
Gillmor/Gilmore	Gillmor	Mount Dodwell Ballyglass House
Glancy/Glancey	Glancy/Glancey French (Frenchlawn & Frenchbrook) Johnson (Ballymoe)	Frenchlawn Willsgrove Bohagh Lodge
Gledstanes	Gledstanes	Fortland Cottage
Glynn	Browne (Oranmore and Browne) Glynn	Millbrook
Godley	Godley (Kilbracken, Lord)	Killygar
Goff	Goff Waldron (Lismoyle) Corr	Oakport Carrowroe Park Ashfort House Derrane Roxborough
Golding/Goulding	Lewin (Cloghans) Blake (Merlin Park) Golding/Goulding	Moyne Lodge Shrulegrove Carnaun/Carnane
Gonne	Bell Gonne
Goodacre	Lambart (Earl of Cavan) Goodacre
Goodall	Blakeney (Holywell) Goodall	Holywell
Goodbody	Perry Goodbody (Clara)	Palmerstown or Pokoroko
Goodwin	Palmer, Baronet Goodwin	Springhill
Gordon	Gordon
Gore (Baronet)	Ouseley Shee (Dunmore) Reilly (Glennamaddy) Gore (Baronet) St George (Dunmore) Keaveny Westropp (Mellon & Ballysteen)	Dunmore Castle
Gore (Castle Gore)	Gore (Earl of Arran) Cuff (Baron Tyrawley) O'Hara (Baron Tyrawley)	Deel Castle Castle Gore
Gore (Woodford)	Gore (Leitrim)	Woodford
Gore Booth	Gore Booth Gorman	Lissadell or Lissadill Ardtermon Castle Clogh Finned House Ballygilgan Gate Lodge Knockalass House Rahelly Keenaghan Mill Hollyfield House Oxfield Derroon House Moorfield Cottage Urlar or Beckfield
Gorham
Gorman	Gore Booth Gorman	Cloonshanbally Keenaghan Mill Templevanny
Gough	Vereker (Viscount Gort) Gough (Lord Gough) O'Shaughnessy (Gort) Gough (Limerick)	Lough Cutra (Lough Cooter) Tiraloughan Rathronan Annesgift Ardsallagh
Gough (Sligo)	Gough (Sligo)	Carrickard
Grace	Grace Bowen (Mantua) Dowell (Mantua)	Mantua
Graham	Knox (Castlereagh) Bolingbroke Graham
Graham	Rathbourne Persse (Roxborough & Moyode)
Graham (Ballynakill Lodge)	Tulloch Ellis (Letterfrack) Graham (Ballynakill) Lynch (Barna) Butler (Crocknaraw) Eastwood	Ballinakill Lodge Cartron Crocknaraw/Rockfield House
Grainger
Grant (Cloonmore)		Cloonmore
Grant (Lagduff)	Grant (Lagduff) Wilks	Srahnamanragh Lagduff Lodge
Graves (Co Galway)	Graves	Temple
Gray	Gray	Doomore Carnaleck or Carrownaleck Sliganagh
Gray (Castlereagh)	Gray (Castlereagh)	Dalefield
Gray (Claremorris)	Browne (Claremount) Gray (Claremorris)	Coarsefield
Graydon (Cos Galway & Mayo)	O'Malley (Ballynalacka) Graydon (Cos Galway & Mayo)	Ballynalacka Lodge
Green	Knox Gore Green Bolton	Rosserk
Greene (Co Galway)	Greene (Co Galway) D'Arcy (Ballinlass) O'Sullivan	Barnavihall Claremont Mount Florence
Greene (Galeybeg)	Bond (Carrownure) Greene (Galeybeg)	Galeybeg
Gregory	Gregory Comerford Hodgson Ryan (Murroogh)	Coole Russaun (Russane) Roo Forthill Cottage
Grehan	Grehan Crotty (Mountplunkett) Plunkett (Mountplunkett) McCreery Crown Life Insurance Company	Gorteen Mountplunkett Churchboro
Greville-Nugent	Greville-Nugent (Lord Greville) Nugent (Earl of Westmeath)	Cloonteem Springfield
Griffith (Claremorris)	Griffith (Claremorris) Browne (Claremount)
Griffith (Dunmore)	Griffith (Dunmore) Shee (Dunmore)	Dunmore House
Griffith (Sligo)	Griffith (Sligo)	Port Royal Castle Neynoe/Ballysumaghan House Ballytivnan House
Grove	Grove	Charlesfort House
Guilfoyle	Guilfoyle	Carrowculleen House
Guilfoyle (Galway)	Ryan (Murroogh) Guilfoyle (Ower)
Guinness	Jameson Guinness Pitcairn Waller (Baronet) Browne (Oranmore and Browne) Clements & Caulfield (Earls of Leitrim & Charlemont) D'Arcy (Kiltullagh & Clifden Castle)	Strandhill Doon Ashford Castle Rosshill Moyode Kylemore Lodge
Gunning (Horton)	Gunning (Co Roscommon) Davis (Carrowmore)	Castlestrange Johns Port House Carrowmore
Gunning (Kilroe)	Gunning (Kilroe)	Kilroe
Gunning Plunkett	McDonnell (Dunmore) Gunning (Co Roscommon) Browne (Mount Browne)	Holywell Ballymartinbeg Mount Browne
Hackett	Hackett	Ardcarne House
Hague/Heague	Conry (Cloonahee) Hague	Cloonahee
Haig	Haig	Moyglass
Hale	Hale	Temple View
Hall (Knockbrack)	Bodkin (Castletown & Mountsilk) Hall (Knockbrack) Burke (Tiaquin) Hall (Woodfield)	Bingarra Knockbrack
Hall (Leitrim & Roscommon)	Hall (Roscommon)
Hall (Letterfrack)	Ellis (Letterfrack) Hall (Letterfrack)	Letterfrack
Hall-Dare	Hall-Dare	Temple House Tully Beg House Thornhill (Ballinacarrow)
Hallam	Hallam
Hamilton	Hamilton	Corrastoona More
Handcock	Dick Handcock Handcock (Baron Castlemaine)	Carrowntryla
Handcock	Handcock Handcock (Baron Castlemaine)
Handcock (Aughrim)	Lawder Devenish Handcock (Aughrim)
Handy	Fleming Knott Orme (Owenmore) Handy	Ballintober Carrowmore/Fairfield Glencarne House
Hanly/Hanley	O'Beirne (Drumsna) Lawder Waldron (Lismoyle) Hanly/Hanley	Ballycummin Dangan Lavagh
Hardiman	Hardiman Coneys (Clifden)	Errew
Harding	Fetherston/Fetherstonhaugh (Derryhivney) Harding	Derryhivney
Hardy (Dartfield)	Hardy (Dartfield) Blackstock	Dartfield Attikee & Kill
Harlow/Harloe	Harloe	Rockbrook
Harpur	Young Harpur
Harris (Roscommon)	Harris (Roscommon)
Harrison (Co Galway)	Harrison (Co Galway)	Woodberry House (Kilconnell) Drumalagagh Cottage Sprucehill House (Kilconnell)
Harter	Macklin Harter
Hartigan	Hartigan	Carrownamanagh
Hassard	Bingham (Erris) Ruttledge Hassard
Hastings (Huntingdon, Earl of)	Hastings (Huntingdon, Earl of)	Grange Abbeyville Grousehill House
Haugh	Haugh
Hawkes (Brierfield)	Cotton Hawkes (Brierfield)	Portumna Brierfield Faragher Lodge Ardkeenagh (Plunkett)
Hearn/Hearn Kirkaldy	Hearn/Hearn Kirkaldy Kirkaldy	Hearnesbrook Rathmoyle
Hemsworth	Hemsworth	Woodberry House (Kilconnell) Danesfort House (Ballynakill)
Henry (Kylemore)	Blake (Renvyle) Graham (Ballynakill) Henry (Kylemore) Wilberforce Eastwood	Kylemore Abbey
Henry (Toghermore)	Deane Henry (Toghermore) Blake (Crumlin) Henry (Tipperary & Limerick)	Toghermore Crumlin Carrowntryla
Herne & Starke	Herne & Stark	Roadstown
Hewitson & Eden	Whitney Hewitson & Eden	Annagh Lodge
Hewson (Drumahaire)	Hewson (Drumahaire)	Drumahaire Lodge
Hibbert	Reade Hibbert	Woodpark/Wood Parks
Hickman (Athenry)	Hickman (Athenry) Hickman (Newpark)	Wallscourt Athenry House
Higgins (Carrowpadden)	Higgins (Carrowpadden)	Carrowpadden
Higgins (Clonbur)	Higgins (Clonbur) Trinity College, Dublin, Provost and Fellows
Higgins (Westport)	Bingham (Earl of Lucan) Browne/Dillon-Browne (Glencorrib) Dillon (Feamore) Brabazon Browne (Marquess of Sligo) Higgins (Westport) Hastings	Trafalgar Lodge Glencorrib
Hildebrand	Browne (Marquess of Sligo) Graham (Ballynakill)
Hillas	Hillas	Seaview or Doonecoy
Hinds / Hindes	Hinds/Hindes
Hodgson	St George (Tyrone) Blake (Merlin Park) Hodgson	Currarevagh Merlin Park
Hodson (Athlone)	Hodson Neligan	Hodson Bay Rockhill Johns Port
Hodson/Hutson/Hudson	Hutson Hodson	Toolooban Cloonatleva Cloonatleva Mill Fohenagh
Hogg	King (Drumsna) Hogg	Cartron (King) Lowfield
Holland	Holland	Hillswood Caraunbeg
Hollow Sword Blades Company	Jefferyes Putland Hollow Sword Blades Company	Ardtully House Blarney Castle
Holmes	O'Donel Holmes (Achill Island)
Holmes	Holmes	Coolavin
Holmes (Cloonlaughnan)
Holmes (Nenagh)	Holmes (Nenagh)
Holmes (Rockwood)	Holmes (Rockwood) Boyse	Rockwood
Hone	Irwin (Roscommon & Galway) Hone	Carrowleana House
Hood	Ruttledge Hood	Togher
Horkan/Harkan	Ruttledge Horkan	Liscottle
Horsman	Horsman	Fearmore Deerpark
Hosie	Hosie	Castle Dargan
Houston	Shaen Houston
Houstoun	Browne (Marquess of Sligo) Houstoun	Doolough Delphi Lodge
Howard	Howard	Moorfield House
Howley (Belleek Castle)	Kirkwood (Glencarha) Knox Gore Howley	Quignashee Belleek Castle/Ballina House Beaufield House Ellaghmore Cooga Lodge Quignamanger
Howley (Broadlands)	Howley	Broadlands
Hudson (Strokestown)
Hughes	Hughes
Hughes (Co Roscommon)	Ferrall Hughes (Co Roscommon) Johnson (Ballymoe)	Beechwood
Hunt (Co Galway)	Hunt	Ballymantan/Ballynamantan
Hunt (Co Roscommon)	Hunt Longworth	Lackan
Hunter & McKay	Hunter & McKay	Hearnesbrook
Hussey (Mounthussey)	Moore/O'Moore (Cloonbigny) Walsh/Hussey Walsh Hussey (Mounthussey)	Mounthussey
Hutchinson Stewart	Hutchinson Stewart
Hyde	Kane Hyde	Drumkilla or Mohill Glebe Carrickard
Hynes	Hynes	Seamount
Hynes (Woodmount)	Kelly (Creagh) Hynes (Woodmount)	Woodmount
Incorporated Society	Incorporated Society Jones (Earl of Ranelagh)	Johnstown Woodberry House
Ingham	Ingham	Rocklands (Oranmore)
Ireland (Galway & Kiltartan)	Lynch (Lydican) Smyth (Portlick Castle) Daly (Kiltartan) Ireland	Roo Thornville
Irish Land Purchase and Settlement Company	Bodkin (Kilcloony) Irish Land Purchase and Settlement Company
Irwin (Beechwood)	Ferrall Irwin (Kilcummin) Irwin (Leabeg & Beechwood)	Beechwood Leabeg Newtown
Irwin (Camlin)	Irwin (Camlin)
Irwin (Erris)	Shaen Irwin (Erris)
Irwin (Flower Hill)	Irwin (Flower Hill) Cogan	Flower Hill Quarryfield
Irwin (Kilcummin)	Irwin (Kilcummin)
Irwin (Leitrim & Monaghan)	Irwin (Leitrim & Monaghan)
Irwin (Portumna)	Irwin (Portumna)
Irwin (Rathmoyle)	Perkins Irwin (Turlough) Hearn/Hearn Kirkaldy Irwin (Rathmoyle)	Ballaghawbeg Emlagh Rathmoyle Peak Fern Hall Raheen
Irwin (Roscommon & Galway)	Irwin (Roscommon & Galway)	Ballymore Camlin Killukin Glebe Granny Rushfield
Irwin (Streamstown)	Irwin (Streamstown)	Streamstown Mount Irvine or Mount Irwin Roxborough Muckelty
Irwin (Tanrego)	Irwin (Streamstown) Verschoyle Olpherts	Tanrego Beltra Rectory
Jackson (Carrowmore)	Vaughan Jackson	Carrowmore/Carramore
Jackson (Enniscoe)	Jackson Pratt	Enniscoe
Jackson (Fortland)	Jackson Pratt	Fortland
Jackson (Galway)	Jackson (Galway)
Jackson (Killaguile)	Martin (Ross) Jackson (Killaguile)	Killaguile House
Jameson (Cong)	Jameson Guinness O'Donel
Jameson (Sheskin)	Jameson McDonnell (Carnacon)	Sheskin Lodge
Jameson (Windfield)	Jameson Blake (Windfield) Barrington (Glenstal) (Baronet)	Windfield Fort William/Fort Lyster
Jenings (Fountainhill)	Jenings	Fountainhill
Jenings (Mount Jenings)	Jenings	Mount Jenings Kilrush House
Jennings (Ironpool)	Ogilvie Jennings (Ironpool)	Ironpool
Jephson (Carrick)	McLoughlin (Castlecoote) McDermott (Castlerea) Jephson (Carrick) Jephson-Norreys (Mallow Castle)	Ballynakill Knockaderry Carrick House
Johnson (Ballymoe)	Glancy/Glancey Hughes (Co Roscommon) Johnson (Ballymoe)
Johnston (Ahascragh)	Hutson Johnston (Ahascragh)	Hampstead Cloonatleva Fohenagh
Johnston (Boyle)	Johnston (Boyle)	Moylurg House
Johnston (Friarstown)	Johnston (Friarstown) Buchan Palmer (Leitrim) Johnston (Killannin)	Friarstown Aghacashel Tawnahoney
Johnston (Killannin)	Johnston (Friarstown) Ryan (Murroogh) Johnston (Killannin)
Johnston (Kinlough)	Ruttledge Johnston (Kinlough) Connolly	Kinlough House (Oakfield House) Brookhill (Rossinver) Mount Prospect
Johnston (Williamstown)	Blackstock McDermott (Springfield) Johnston (Williamstown)
Jones (Ardbear)	Frewen Geoghegan/O'Neill (Bunowen) Jones (Ardbear)	Ardbear House
Jones (Ardnaree)	Walsh (Castlehill) Jones (Fortland) Jones (Ardnaree) Coyne Anderson (Massbrook)	Ardnaree Cottage Wood Park Woodbine Massbrook
Jones (Benada)	Jones	Benada Altanelvick
Jones (Boyle)	Jones (Boyle)	Knockvicar
Jones (Drum)	Acton (Bridgemount) Jones (Drum)
Jones (Fermanagh)		Cregg House
Jones (Fortland)	Brinkley Jones (Fortland) Jones (Ardnaree)	Fortland
Jones (Knockaculleen)	Jones (Knockaculleen)	Woodhill House
Jones (Leitrim)	Jones (Leitrim)	Kilbracken Drumard House Headfort/Headford
Jones (Mullinabro)	Jones (Mullinabro)
Jones (Raghly)	Jones (Raghly)	Raghly Lodge
Jones (Rathlee)	Jones (Rathlee)	Rathlee
Jones (Roscommon)	Incorporated Society Jones (Earl of Ranelagh)
Jones (Skreen)	Jones (Skreen)	Toberpatrick (Skreen) Chapel Park
Jones (Streedagh)	Jones (Streedagh)	Streedagh Mount Edward Cottage
Jordan (Oldhead)	Browne (Marquess of Sligo) Jordan (Oldhead)	Elmhall
Jordan (Rosslevin)	Jordan (Rosslevin)	Thornhill Listrisnan House
Joyce (Clifden)
Joyce (Corgary)	Joyce (Mervue) Concanon French (Corgary) Joyce (Corgary)	Corgary
Joyce (Gortnarup)	Miller (Milford) Thomson Joyce (Gortnarup) Joyce (Leenaun)	Gortnarup
Joyce (Joycegrove)	Browne (Brownesgrove) Joyce (Joycegrove)	Joycegrove/Brownesgrove
Joyce (Leenaun)	Martin (Ballynahinch) Clements & Caulfield (Earls of Leitrim & Charlemont) Joyce (Gortnarup) Joyce (Leenaun)	Leenaun
Joyce (Mervue)	Blake (Towerhill) Joyce (Mervue) Erasmus Smith Schools, Governors of Joyce (Corgary)	Ardfry Mervue/Merview Caltra Lodge Kiltullagh House
Joyce (Oxford)	Tuohy Joyce (Oxford)	Oxford
Joyce (Rahasane)	Joyce (Rahasane) ffrench (Rahasane) Bourke (Curraghleagh & Rahasane)	Rahasane
Joyce (Rusheen)
Joynt	Knox (Castlereagh) Joynt
Kane	Kane	Mohill Castle Glebe Mohill
Kane/Keane (Kiltartan)	Kane (Kiltartan)	Rosepark House
Kearney	Bingham (Earl of Lucan) Kearney	Ballinvilla
Keatinge (Co Galway)	Kirwan (Hillsbrook) Keatinge
Keaveny	Gore (Baronet) Keaveny
Kelly (Aghrane Castle/Castle Kelly)	Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly) Kelly (Aghrane Castle/Castle Kelly)	Aghrane Castle/Castle Kelly Ballybaun Thornfield
Kelly (Athenry)	Kelly (Athenry) Kelly (Killaan)	Rockmore or Blakelands Lodge Dundermot
Kelly (Barony of Leitrim)	O'Flaherty (Lisdonagh) Kelly (Barony of Leitrim)	Hollyhill Killeen House (Portumna)
Kelly (Bernard)		Ballagh
Kelly (Boyounagh)	Reilly (Glennamaddy) Kelly (Boyounagh)	Kedagh Park Cloondoyle Ashfield
Kelly (Cargins)	Nugent (Pallas) (Lord Riverston) Kelly (Turrock) Toler (Bloomfield) Kelly (Cargins) Drought D'Arcy (Castlepark)	Cargins Park
Kelly (Castlegar)	Browne (Oranmore and Browne) Kelly (Castlegar)	Castlegar
Kelly (Castlereagh)	Kelly (Castlereagh)
Kelly (Churchboro)	Kelly (Churchboro) McCreery	Churchboro
Kelly (Clooncannon)	Kelly (Kellysgrove) Kelly (Clooncannon)	Clooncannon/Cloncannon/Runnamead
Kelly (Clooshgereen)
Kelly (Creagh)	Kelly (Creagh) Hynes (Woodmount) D'Arcy (Castlepark)	Castle Park House Woodmount
Kelly (Dunkellin)	Kelly (Dunkellin) Kelly (Scregg)	Cottage (Dunkellin)
Kelly (Essex Lawn)	Kelly (Essex Lawn)	Essex Lawn
Kelly (Fiddaun Lodge)	D'Arcy (Newforest) D'Arcy (Wellfort) Kelly (Fiddaun)	Fiddaun Lodge
Kelly (Johnstown)	Dillon (Johnstown) Kelly (Johnstown)	Johnstown
Kelly (Kellybrook)		Kellybrook
Kelly (Kellysgrove)	Kelly (Kellysgrove)	Kellysgrove
Kelly (Kilbeacanty)	Kelly (Kilbeacanty)
Kelly (Killaan)	Kelly (Athenry) Kelly (Killaan)	Ashbrook
Kelly (Kinvara)	Kelly (Kinvara) Hodgson	Aggard
Kelly (Limerick)	Kelly (Limerick) Kelly/Roche Kelly
Kelly (Lisduff)	Browne (Marquess of Sligo) Burke (Ballydugan) Browne (Coolaran, Kilskeagh & Mountkelly) Prendergast (Kiltormer) Dalton Kelly (Lisduff)	Lisduff
Kelly (Midfield)	Brabazon Kelly (Midfield) Palmer, Baronet	Midfield House Longfield House
Kelly (Mohill)	Kelly (Mohill)
Kelly (Muckloon)	Kelly (Muckloon) D'Arcy (Ballinlass) Lloyd (Rockville)	Muckloon
Kelly (Newtown)	Cullen Kelly (Newtown) Browne (Moyne)	Newtown Farmhill
Kelly (Riversdale)		Riversdale
Kelly (Rockville)	Kelly (Rockville)
Kelly (Rookwood)	Kelly (Rookwood) Thewles Strevans	Rookwood Kiltoom
Kelly (Scregg)	Kelly (Dunkellin) Kelly (Scregg)	Cottage (Dunkellin) Ballymurray Scregg
Kelly (Skerdagh)	O'Donel Kelly (Skerdagh)
Kelly (St Helens)	Law Life Assurance Society Kelly (St Helens)
Kelly (The Grove)	Kelly (The Grove)	The Grove
Kelly (Tiranascragh)	Kelly (Tiranascragh)	Lisduff Longford Lodge
Kelly (Tully)	Lawder Kelly (Tully)	Tully Lodge
Kelly (Turrock)	Kelly (Turrock) Kelly (Cargins)	Turrock
Kelly-Egan	Kelly-Egan
Kendall	Morris (Ballinaboy) Graham (Ballynakill) Kendall	Ardagh House
Kennedy	Wyndham Kennedy (Moycullen) Kennedy (Corraunboy)	Burrishoole Lodge
Kennedy (Drumahaire)	Kennedy (Drumahaire)
Kennedy (Kilmore)	Kennedy (Kilmore)	Kilmore
Kennedy (Moycullen)	St George (Tyrone) Kennedy (Moycullen)
Kenney/Fitzgerald-Kenney	Lynch/Crean Lynch Pollok Kenney/Fitzgerald-Kenney	Clogher Corrandoo Kilclogher Claremont
Kenny (Ballinrobe)	Cuff (Baron Tyrawley) Knox (Castle Lackan) Kenny (Ballinrobe)	Summerville/Villa Lodge Robe Villa Liskilleen Blake Hill
Kenny (Freagh Castle)	Kenny (Freagh Castle)	Freagh Castle
Kenny (Tiranascragh)	Kenny (Tiranascragh)	Lismore Killeragh Longford House (Tirnascragh)
Keogh (Drumsna)	Keogh (Drumsna)	Bunnybeg/Bonnybeg Flanker House
Keogh (Keoghville)	McKay Keogh (Keoghville)	Keoghville Camlagh Feacle/Fighill Corkip
Keogh (Tirerrill)	Keogh	Ballynashee Lodge Springfield House Straduff Lodge
Keon	Keon	Keonbrook Newbrook
Keppel (Albemarle, Earls of)	Keppel (Earl of Albemarle)
Kiernan	Kiernan
Kilkelly	Kilkelly	Raheen Cloghballymore Lydacan
Kilkelly (Drimcong)	Kilkelly Lynch (Drimcong)	Drimcong Cloghballymore
Kilkelly (Mossfort)	St George (Tyrone) Kilkelly (Mossfort)	Mossfort
Kilkelly (Summerville)	Bodkin (Carrowbeg & Thomastown) Kilkelly (Summerville) O'Kelly (Creeraun) McAlister Mitchell	Summerville/Thomastown
Killala (Church Land)
King (Ballylin)	King (Drumsna) King (Ballylin)	Dangan
King (Carrigallen)	King (Carrigallen)	Cloghlough
King (Drumsna)	King (Drumsna) King (Carrigallen) King (Ballylin)	Kilmore House Cartron (King) Charlestown House Rush Hill
King (Killary Lodge)	Law Life Assurance Society King (Killery Lodge)	Letterbrickaun Killary Lodge
King (Kingston/Lorton)	Knox Gore King (Kingston, Earls of , Lords Lorton) O'Callaghan (Viscount & Baron Lismore) Buckley Power (Springfield) Irish Land Company	Lisserlough Rockingham Tower Hill Ardcarne House Glencarne House Castle Island Ardcarn Glebe Grevisk Mount Erris Millmount Warren/Drum King House Lough Key House Carrickard House Abbey View House Ellesmere Drum Lodge Loughananna Roskeen Springvale Ballinwillin Mitchelstown Castle Marshalstown Mounteagle Cottage Araglin Cottage Ballywilliam Galtee Castle
Kirkwood (Bartragh Island)	Kirkwood (Glencarha) Hopper	Bartragh Island
Kirkwood (Boyle)	Kirkwood (Boyle)	Cloongownagh Woodbrook House Woodbrook
Kirkwood (Cottlestown & Clooncunny)	Kirkwood Rice Boyd	Clooncunny Cottlestown
Kirkwood (Crosspatrick)	Kirkwood Boyd	Crosspatrick
Kirkwood (Erris)
Kirkwood (Glencarha)	Fenton Kirkwood (Glencarha)	Glencarha
Kirwan (Ballyturin)	Kirwan (Ballyturin)	Ballyturin
Kirwan (Blindwell)	Miller (Milford) Kirwan (Blindwell)	Blindwell
Kirwan (Carnaun & Dalgin)	D'Arcy ( Houndswood) Birmingham (Dalgin & Millbrook) Kirwan (Carnaun & Dalgin)	Dalgin Millbrook Carnaun/Carnane
Kirwan (Castlehacket)	Kirwan (Castlehacket)	Castlehacket Cahermorris Dennistown House
Kirwan (Cregg)	Kirwan (Cregg Castle) Blake (Cregg Castle) Kirwan (Hillsbrook) Kirwan (Woodfield)	Cregg Castle Baunmore
Kirwan (Dalgan)	Kirwan (Dalgan) Russell (Baron de Clifford) Russell (Duke of Bedford)	Dalgan Claremount Dalysfort
Kirwan (Gardenfield)	Kirwan (Blindwell) Kirwan (Gardenfield)	Gardenfield Ballygaddy
Kirwan (Hillsbrook)	Kirwan (Cregg Castle) Kirwan (Hillsbrook) Keatinge	Hillsbrook Prospect House
Kirwan (Moyne)	Browne (Moyne) Kirwan (Moyne)	Moyne Glencolumbkille House Cappagh House
Kirwan (Woodfield)	Kirwan (Cregg Castle) Kirwan (Woodfield)	Woodfield
Knott (Battlefield)	Knott Handy Blackstock	Battlefield Knockadoo Atteville
Knowles	Knowles
Knox (Castle Lackan)	Cuff (Baron Tyrawley) Knox (Castle Lackan) Clendining	Creagh Castle Lackan Cranmore
Knox (Castlereagh)	Knox (Castlereagh) Knox (Moyne Abbey)	Castlereagh Doomore Glencalry Lodge
Knox (Errew)	Knox (Moyne Abbey)	Errew Grange
Knox (Greenwoodpark)	Knox (Rappa) Knox (Netley Park) Knox (Greenwoodpark) White (Crossmolina) Armitage	Greenwoodpark Woodville
Knox (Mount Falcon)	Knox (Castlereagh) Watts Knox (Mount Falcon)	Bunnacranagh Mount Falcon Rathmagurry House
Knox (Netley Park)	Knox (Rappa) Knox (Netley Park) White (Crossmolina)	Netley Park
Knox (Prospect)	Knox (Prospect)	Prospect (Kiltartan) River View Lavally (Kiltartan)
Knox (Rappa)	Knox (Rappa) Colleran	Rappa Castle Palmerstown
Knox (Strokestown)	Mahon/Pakenham-Mahon (Baron Hartland) Knox (Strokestown)	Cloonfree
Knox /Blake Knox (Moyne Abbey)	Knox (Castlereagh) Jones (Ardnaree) Knox (Moyne Abbey) Lindsey Sproule	Moyne Abbey
Knox Gore	Knox Gore King (Kingston, Earls of , Lords Lorton) Gore (Earl of Arran)	Downhill Ardnaree Cottage Broadlands Belleek Manor/Abbey
Kyle	Kyle
L'Estrange	L'Estrange	Kevinsfort Somerton
L'Estrange (Fahy)	L'Estrange (Fahy)	Greenfield/ Fahy
La Touche	La Touche Thewles	Drumhierny Lodge Ballyduff House Holly Park (Leitrim)
Lahiff	Lahiff	Cloon Russaun (Russane)
Lally	Vesey Lally Daly (Ballygaddy)	Ballygaddy
Lambart	McCormack Lambart (Earl of Cavan) McDonnell (Achill) Goodacre
Lambert (Brookhill)	Guinness Ruttledge Bell Clendining Browne (Oranmore and Browne) Lambert (Brookhill) Thomson	Abbey House Rusheen/Thomastown Cranmore Togher Brookhill Dernasliggaun
Lambert (Castle Ellen)	Lambert (Cregclare & Aggard) Lambert (Castle Ellen) Lambert (Castle Lambert)	Castle Ellen
Lambert (Castle Lambert)	Lambert (Cregclare & Aggard) Shawe-Taylor Blake (Corbally) Lambert (Castle Lambert)	Castle Lambert Moor Park Streamstown House(Tynagh)
Lambert (Cregclare)	Bingham (Newbrook) (Baron Clanmorris) Lambert (Cregclare & Aggard) Mitchell	Cregaclare Aggard Kilquain Waterdale
Lancaster	Lancaster	Fortwilliam Ardcarn (Lancaster) Lancaster House or Lancaster Park
Lane/Lane-Fox	Lane-Fox	Drumahaire Lodge Larkfield Millbank House
Langan/Hevey Langan
Langley	Langley
Langley (Longford)	Langley (Longford)
Larminie	Fynn Chambers (Kilboyne) Larminie	Spencer Park
Larpent
Lattey	Lattey Butler (Cregg)	Ballygeagin House Cregg/Cregg Park Island/ Sallymount
Law Life Assurance Society	O'Malley (Kilboyne) Law Life Assurance Society Martin (Ballynahinch) Berridge Kelly (St Helens) Strutzer	Ballynahinch Castle Cashel Garroman Srue
Law Union & Crown Insurance Company	Law Union & Crown Insurance Company
Lawder (Tully)	Lawder Kelly (Tully)	Aghamore House Kilmore House Ashfort House Tully Lodge Lavagh Toberpatrick Lowfield
Lawder/Lauder	Lawder	Lawderdale Mough Bunnybeg/Bonnybeg Aghamore House Flanker House Caldragh
Lawrence (Lawrencetown)	Lawrence	Bellevue/Lisreaghan
Le Nauze	Le Nauze
Lecky	Lecky
Lee (Gort)	Lee (Gort)
Leech	Leech
Lees	Lees (Baron Blackrock)
Leeson	Leeson Sewell
Lefroy (Leitrim & Limerick)	Lefroy
Lemon	Lemon	Ormond View
Lennon	Lennon	Clooncannon/Cloncannon/Runnamead
Leonard	Leonard	Queensfort Lodge Queensfort House
Levinge	Smyth (New Park) Levinge Levinge (County Cork)	New Park
Lewin (Cloghans)	Cannon Costello (Cloghansmore) Lewin (Cloghans)	Cloghans House Castlegrove
Lewis	Lewis Bond	Glasdrumman
Lewis (Galway)	Aylward Lewis (Galway)	Ballynagar/Ballinagar
Lighton	D'Arcy (Kiltullagh & Clifden Castle) Lighton
Lillie/Lilly	Lillie/Lilly	Drumdoe
Lindsey (Hollymount)	Lindsey Vesey Porter (Belle Isle)	Kilrush House Hollymount Rathgranagher
Lindsey (Sligo)	Lindsey	Quignalecka
Lindsey (Wilfort)	Lindsey (Wilfort) Lindsey Tighe (The Heath)	Wilford
Lindsey Bucknall	Lindsey (Wilfort) Lindsey Rutherford Staples	Moyne Abbey Turin
Little	Knox (Castlereagh) Fawcett (Ballykinlettragh) Little
Little (Knockadoo)	Tenison/Tennison/King-Tenison Little (Knockadoo)	Knockadoo Knockranny
Livesay (Boyounagh)	Livesay
Livesay (Cushlough)	Cuff (Baron Tyrawley) Livesay	Cuslough
Livingstone	Knox (Castlereagh) Browne (Marquess of Sligo) Livingstone	Greenhills Knockranny Belclare
Lloyd (Croghan & Leitrim)	Lloyd (Croghan)	Estersnow Glebe Knockadoo Faus Croghan Bunreagh Hermitage Scor More Cavetown Ardagh
Lloyd (Killoran)	Lloyd Lloyd (Croghan)	Ardagh
Lloyd (Lisnanuran)	Lloyd (Lisnanuran)	Lisnanuran
Lloyd (Rockville)	Kelly (Muckloon) Lloyd (Rockville)	Muckloon Arm Lodge Fortview Rockville Lissadorn
Lloyd (Smith Hill)	Lloyd (Smith Hill)	Smith Hill
Logan	O'Beirne (Sligo) Logan
Longbourne	Longbourne	Longford House (Tirnascragh)
Longfield	Lyster Longfield	Rocksavage Barnaboy
Longworth	Longworth	Oatfield Sprucehill House (Kilconnell)
Lopdell	Lopdell Lopdell (Derryowen)	Castle Lodge River View Rosehill Prospect Athenry House Raheen (Athenry)
Lougheed	Fenton Lougheed	Dromore Rockbrook
Lowe	Lowe	Lowville
Lydon	St George (Tyrone) Lydon
Lynch (Ballycurrin)	Lynch (Ballycurrin)	Ballycurrin
Lynch (Ballymoe)	Lynch (Ballymoe)
Lynch (Barna)	Comyn (Woodstock) Graham (Ballynakill) Lynch (Lynch's Castle) Lynch (Barna) Whaley	Cloghballymore Barna
Lynch (Carrowbeg North)	Lynch (Carrowbeg) Bodkin (Carrowbeg & Thomastown)	Carrowbeg North
Lynch (Castlereagh & Roseberry)	Lynch (Castlereagh & Roseberry)	Roseberry House Lowberry
Lynch (Drimcong)	Kilkelly Lynch (Drimcong)	Drimcong
Lynch (Duniry)	Lynch (Duniry)	Springvale
Lynch (Galway)	Lynch (Galway)
Lynch (Garracloon)	Blake (Garracloon) Browne (Moyne) Lynch (Garracloon)	Garracloon
Lynch (Kilconnell)	Lynch (Kilconnell) Bourchier (Co Galway)	Rathglass Oatfield Ashbrook
Lynch (Lavally)	Lynch (Lavally)	Lavally Stoneleigh
Lynch (Loughrea)	Lynch (Loughrea)	Lynchfort House
Lynch (Lydacan)	Lynch (Lynch's Castle) French (Moycullen) Lynch (Lydican)	Lydacan
Lynch (Lynch's Castle)	Campbell (Baron Stratheden and Campbell) Lynch (Lynch's Castle) French (Moycullen) Lynch (Lydican)	Lydacan
Lynch (Mountbellew)	Lynch/Wilson Lynch (Renmore & Duras) Lynch (Mountbellew)
Lynch (Moycarn)	Mather Lynch (Moycarn)	Woodpark Lodge or Rathpeak House
Lynch (Moyrus)
Lynch (Partry)	Lynch Blosse Lynch (Partry)	Partry House
Lynch (Petersburg)	Lynch (Petersburg) Daly (Raford)	Petersburgh Benlevy Lodge
Lynch (Rockwell)	Lynch (Rockwell)	Rockwell Cloonteen
Lynch (Selerno)
Lynch Blosse	Lynch Blosse Lynch/Crean Lynch Lynch (Partry) Moore (Brees)	Athavallie Castlecarra
Lynch/Crean Lynch	Lynch Blosse Lynch/Crean Lynch Crean (Hollybrook) McDermott (Ramore) Kenney/Fitzgerald-Kenney	Clogher Hollybrook Newborough
Lynch/Wilson Lynch (Renmore & Duras)	Staunton/Lynch Staunton Lynch/Wilson Lynch (Renmore & Duras) Erasmus Smith Schools, Governors of Lynch (Mountbellew) Wilson (Belvoir)	Newtown Lynch Renmore Waterdale Belvoir
Lyons	Bingham (Erris) Lyons	Binghamstown House
Lyons	Geoghegan/O'Neill (Bunowen) Foreman
Lyons (Sligo)	Lyons (Sligo)	Wynnesfort House Rathellen
Lyster (Fairymount)	Mills Lyster (Fairymount)	Fairymount
Lyster (Grange)	Ferrall Lyster	Fort William/Fort Lyster Grange
Lyster (Lysterfield)	Smyth (New Park) Lyster	Lackan New Park Lysterfield Corkip
Maberly	Maberly	Drumalagagh Cottage
MacDermottroe	MacDermottroe Lawder	Alderford Toberpatrick
MacDonagh	McDonagh	Carrowkeel
Macklin	Macklin Harter
Macready (Galway)	Macready (Galway)
Madden	Knox (Castlereagh) Gardiner Madden
Madden (Castlerea)	Madden (Castlerea)
Madden (Kiltormer)	Madden (Kiltormer)	Ballydonagh Shannon View Shannon Grove Creagh Lodge
Madden (Leitrim)	Madden (Leitrim) Ryder (Tuam)
Magan	Magan Donnellan (Cloghan)	Keenagh Correal
Magee	St George (Tyrone) Magee
Maguire	Maguire
Maguire (Meelick)	Maguire (Meelick)
Maher	Maher	Liskelly
Mahon (Beech Hill)	Mahon (Beech Hill) Villiers (Kilpeacon & Beech Hill)	Beech Hill
Mahon (Belleville)	Browne (Coolaran, Kilskeagh & Mountkelly) Mahon (Belleville)	Belleville
Mahon (Castlegar)	Mahon (Mount Pleasant) Mahon (Castlegar)	Ahascragh Glebe Weston Ballyglass Castlegar Killareeny
Mahon (Cavetown)	O'Conor (Dundermott) Mahon (Cavetown)	Laragh and Ross Cavetown
Mahon (Cloonfree)	Mahon (Cloonfree)	Cloonfree
Mahon (Killalaghtan)	Mahon (Killalaghtan)	Ballydonelan Castle
Mahon (Mount Pleasant)	Bingham (Newbrook) (Baron Clanmorris) Mahon (Mount Pleasant)	Mount Pleasant
Mahon (Northampton)	Mahon (Northampton) O'Connell (Kilgory)	Northampton
Mahon (Thornfield)	Kelly (Aghrane Castle/Castle Kelly) Mahon (Thornfield)	Ballybaun Thornfield
Mahon (Willmount)	Mahon (Willmount)	Willmount
Mahon/Pakenham-Mahon	Pakenham Mahon/Pakenham-Mahon (Baron Hartland) O'Conor (Toomona)	Castlenode Strokestown House Newtown Lisroyne Lodge
Malcolmson (Portlaw)	Malcolmson (Portlaw)	Mayfield (Portlaw) Woodview House (Portlaw) Milfort/Milford House (Portlaw)
Malley	McDermott (Cloongee) Malley McDonnell (Breandrum)	Bellavary
Malone	Malone Dillon (Feamore) Bailey Ennis Bourke (Oldtown)
Manning
Mapother	Mapother	Kilteeven House
Marnell	Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly) Marnell	Marnellsgrove
Marsh	Marsh
Marsh (Galway)	Marsh (Galway)
Martin (Ballynahinch)	Law Life Assurance Society Bell Martin (Ballynahinch) Martin (Ross)	Ballynahinch Castle Garroman Clareville Srue
Martin (Ballynakill)	Martin (Ballynakill)	Eagle Hill Cartron (Ballynakill)
Martin (Bushy Park)	Martin (Ballynahinch) Martin (Bushy Park)	Bushy Park
Martin (Cloonygormican)	Martin (Cloonygormican)
Martin (later Wood-Martin)	Martin Wood	Cleveragh Rockbrook Bloomfield Ellenville or Ardaghowen Esker Lodge Violet Hill
Martin (Ross)	Martin (Ballynahinch) Martin (Ross) Jackson (Killaguile)	Ross Letter Lodge
Martin (Toomore)	Cuff (Baron Tyrawley) Martin (Toomore)
Martyn (Curraghmore)	Martyn (Curraghmore)	Curraghmore
Martyn (Tulira)	Martyn (Tullira)	Doobeg Tullira
Mason (Masonbrook)	Mason (Masonbrook) Daly (Dalystown)	Masonbrook
Massy	Massy (Baron of Duntrileague) White (Annaly, Baron) Butler (Carrick) (Viscount Ikerrin, Earl of Carrick) Taylor (Ballynort & Holly Park) Massy (Riversdale & Ballinacurra) Massy (Ballynort) Massy (Suir Castle)	Munakill Lareen Fortland House Hermitage Ballynacourty Milford Massy Lodge Stagdale Lodge
Mather	Mather Lynch (Moycarn)	Faltia House
Mathews	Mathews	Shannon Hill (Derryvunlam)
Maunsell	Smyth (Portlick Castle)	Springlawn
Maxwell (St. Cleran's)	Maxwell (St. Cleran's)	St. Cleran's or Issercleran
McAlister	Kilkelly (Summerville) McAlister
McAlpine	Browne (Marquess of Sligo) McAlpine McDonnell (Breandrum)	Windsor
McAlpine (Sligo)	McAlpine (Sligo)	Doobeg
McCallum	Carey McCallum Buddicom
McCarrick	McCarrick Jackson Ruttledge	Cloonbarry Kilglass Carns (Kilmacteige)
McCarthy	Digby McCarthy	Drummartin
McCausland	Plunket (Baron Plunket) McCausland	Drimbawn
McCausland (Limavady)	McCausland (Limavady) Goldsmith	Lisbride Ballyoughter
McCormack	McLoughlin (Newfield) Browne (Marquess of Sligo) McCormack
McCormack (Tuam)	Burke (Keeloges) McCormack (Tuam)
McCoy	McCoy	Willmount
McCreery	Kelly (Churchboro) McCreery McDermott (Castlerea) Jephson (Carrick)	Churchboro
McCutcheon	McCutcheon
McDermott	McDermott (Lissycoyne)	Lissycoyne
McDermott (Castlereagh)	McDermott (Castlerea) Jephson (Carrick)
McDermott (Cloongee)	McDermott (Cloongee) Evans (Belgarrow) Moore (Cloongee)	Cloongee
McDermott (Coolavin)	McDermott (Coolavin)	Coolavin
McDermott (Ramore/Rathmore)	Lynch/Crean Lynch McDermott (Ramore) Blake (Cregg Castle)	Rathmore
McDermott (Springfield)	McDermott (Springfield) Johnston (Williamstown)	Springfield House
McDermott (Streamstown)	McDermott (Streamstown)	Streamstown House(Tynagh) Brooklawn Bettyville
McDonagh (Kilconnell)	McDonagh (Kilconnell) Clarke (Kilconnell)	Lowville Sonnagh
McDonagh (Lickmolassy/Wilmount)	McDonagh (Lickmolassy) McDonnell (Dunmore)	Moyne Hill Headford Castle Willmount or Gortnacloghy
McDonnell (Achill)	Lambart (Earl of Cavan) McDonnell (Achill)
McDonnell (Aghalahard)	D'Arcy ( Houndswood) McDonnell (Aghalahard)
McDonnell (Breandrum)	Malley Browne (Marquess of Sligo) FitzGerald (Turlough) McAlpine McDonnell (Breandrum)	Windsor
McDonnell (Carnacon)	Jameson McDonnell (Carnacon) Cheevers (Killian) Coneys (Clifden)	Sheskin Lodge Carrownacon House
McDonnell (Cloonagh)	Browne (Marquess of Sligo) Houstoun McDonnell (Cloonagh)	Cloonagh Lodge
McDonnell (Doocastle)	McDonnell (Doocastle) Lindsey	Doocastle
McDonnell (Dunmore)	Fitzgerald/Vesey Fitzgerald McDonnell (Roscommon) McDonnell (Dunmore) Lynch (Castlereagh & Roseberry) Gunning (Co Roscommon)	Headford Castle Skehaghard Ballymartinbeg
McDonnell (Lackan)	Hunt McDonnell (Lackan)	Lackan
McDonnell (Moyour)		Moyour
McDonnell (Palmfield)	Phillips Knox (Castlereagh) McDonnell (Palmfield)	Cloonmore Springlawn Palmfield
McDonnell (Roscommon)	McDonagh (Lickmolassy) McDonnell (Roscommon) McDonnell (Dunmore)
McDougall	McDougall
McEvoy	McEvoy	Mounthazel
McFadden	McFadden
McGloin	Evans (Belgarrow) McGloin
McGrath (Toonagh)	O'Brien (Birchfield) McGrath (Toonagh)	Toonagh House
McGuire	McCormack (Tuam) Maguire (Toureen)
McGusty	McGusty
McHale	O'Donel McHale
McHugh	McHugh
McIvor	Donnellan (Cloghan) McIvor
McKay	McKay Keogh (Keoghville) Connaghton	Keoghville
McLoghry	Downing McLoghry	Bunnyconnellan Cottage Carrickcoola Kingston Lodge
McLoughlin	O'Donel McLoughlin (Newfield) Browne (Marquess of Sligo) Medlycott Smith (Newfield) McCormack	Newfield House,
McLoughlin (Castlecoote)	Mitchell (Castle Strange) McLoughlin (Castlecoote) Jephson (Carrick) Croghan	Castlecoote
McManus (Barleyhill)	Deane Harkan/Horkan Aitken McManus (Barleyhill) Pery (Earl of Limerick) Bourke (Oory)	Barleyhill
McManus (Sligo)	MCManus (Sligo)
McMunn	McMunn	Belville (Kilmacshalgan) Bunowna Seafield
McNamara (Cong)	Guinness McNamara O'Donel Lambert (Brookhill) Echlin Maguire	Abbey House
McNamara (Leitrim)	Peyton (Laheen) McNamara (Leitrim)	Letterfine/Letterfyne
McNamara Morgan	McNamara Morgan	Willmount
McNevin	Forster (Blake Forster) McNevin	Clooneene or Ashfield Rosehill
McSweeney	McSweeney
McTernan	McTernan	Heapstown Lough Allen Cottage
Mead	Knox (Castlereagh) Mead
Mecham	Ruddock Mecham
Medlycott	O'Donel Pratt Medlycott	Rocketscastle Knockane Springfield (Portlaw) Mayfield (Portlaw) Coolroe (Portlaw)
Meldon	Browne/Dillon-Browne (Glencorrib) Blake (Belmont) Browne (Oranmore and Browne) Meldon	Oran Castle Coolaran Belmont
Mennons	Pelly Neligan Mennons
Meredith	Meredith Rutledge (Collooney)	Cloonamahon Strandhill House
Merrifield	Merrifield
Middleton	Middleton	Elsinore Avena
Miller	Miller (Leitrim)
Miller (Fearmore)	Miller (Milford) Daly (Ballygaddy) Miller (Fearmore)	Fearmore
Miller (Milford)	Miller (Milford) Ormsby (Ballinamore) Blake (Renvyle) Bowen Thomson Joyce (Gortnarup) Croasdaile Miller (Fearmore)	Ballynew House Milford
Mills	Mills Lyster (Fairymount)	Fairymount Cherryfield
Mitchell	Lambert (Cregclare & Aggard) Kilkelly (Summerville) Mitchell
Mitchell (Castle Strange)	Mitchell (Castle Strange) McLoughlin (Castlecoote) Mulry	Castlestrange Coolmeen Englishtown Rockfield
Mitchell (Toormakeady Lodge)	Plunket (Baron Plunket) Mitchell (Toormakeady Lodge)	Toormakeady Lodge
Molloy	Carter Molloy Crotty (Mountplunkett)	Fairfield (Kilgerrill) Kilmore
Molony	O'Grady (Tavraun) Molony
Molyneux (Co Roscommon)	Williams (Co Roscommon) Molyneux (Co Roscommon)
Monahan/Monaghan	Monahan/Monaghan	Heathlawn Gloves (Athenry)
Monds	Monds	Castle Street
Montgomery	Montgomery	Belhavel
Moore (Achill)	Browne (Marquess of Sligo) Moore (Achill)
Moore (Boyle)	Moore (Boyle)
Moore (Brees)	Lynch Blosse Browne (Marquess of Sligo) Moore (Brees)	Brees/Brize
Moore (Clonfert)	Moore (Clonfert)	Kilnaborris Dower House Shannon Grove Annaghbeg House
Moore (Cloongee)	Moore (Moorehall) McDermott (Cloongee) Moore (Cloongee) Baker (Cloongee)	Cloongee
Moore (Drum)	Moore (Drum) Bermingham (Drum) Walsh/Hussey Walsh O'Sullivan
Moore (Moorbrook)	Moore (Moorehall) Wills Moore (Moorbrook)	Moorbrook
Moore (Moorehall)	Moore (Moorehall) Moore (Moorbrook) Moore (Cloongee) Plunket (Baron Plunket) Blake (Merlin Park)	Ashbrook Moorehall
Moore/O'Moore (Cloonbigny)	Moore (Brees) French (Errit Lodge) Moore/O'Moore (Cloonbigny) Murphy (Bellfield)	Bellgrove House
More O'Ferrall	O'Reilly (Kildangan) More O'Farrell
Morell/Morrell	Morell/Morrell
Morgan (Ballymacward)	Morgan (Monksfield) McNamara Morgan Morgan (Ballymacward)	Hampstead
Morgan (Monksfield)	Morgan (Monksfield) McNamara Morgan Morgan (Ballymacward)	Monksfield
Morgan (Tireragh)	Morgan	Cottlestown
Morris (Ballinaboy)	Morris (Ballinaboy)	Ballinaboy House
Morris (Spiddle)	Comyn (Woodstock) Morris (Baron Killanin)	Furzepark House Spiddle House Wellpark
Morton	Morton	Rooaun Lodge Castlenode
Morton (Leitrim)	Morton
Mossman	Nicholson Mossman
Mostyn	O'Donel Mostyn (Baron Vaux of Harrowden)
Mudge	Knox (Castlereagh) Mudge	Glenglassera/Glenlossera Lodge
Mullarkey	Mullarkey	Ballyara or Ballyhara Drummartin
Mullins	Mullins
Mulloy	Mulloy	Oakport Hughestown
Mulrooney/Moroney	Mulrooney/Moroney	Fortlawn Cottage
Mulry	Mitchell (Castle Strange) Mulry	Castlestrange
Mulville (County Clare)	Mulville (County Clare)	Prospect (Kiltartan)
Munro	Munro
Murphy (Bellfield)	Moore/O'Moore (Cloonbigny) Murphy (Bellfield)	Bellfield Cottage
Murphy (Castlereagh)	Murphy (Castlereagh) Plunkett (Castleplunket) Murphy (Donaghpatrick)	Cartron Clogher Beg Rossmore
Murphy (Donaghpatrick)	Murphy (Castlereagh) Murphy (Donaghpatrick)
Naghten (Thomastown)	Naghten/O'Naghten	Thomastown Park Cuilleen
Naper/Napper	Browne (Marquess of Sligo) Clements (Leitrim, Earls of.) Bermingham/Birmingham (Rosshill) Naper/Napper Smith (Ross) Dutton (Baron Sherborne)
Nash	Bingham (Erris) Shaen Nash	Carn Leam
National Building and Land Investment Company of Ireland (Limited)	Gildea
Naughton	Naughton
Neilan	Roper (Hazelbrook) Neilan	Hazelbrook
Neligan	Neligan Mennons	Temp House Church Park
Nesbitt	Skerrett Nesbitt
Nesbitt/Nisbett	Ormsby Gore (Baron Harlech) Nisbett	Derrycarne Aughry
Netterville	Gray (Claremorris) Gerrard Netterville Fallon (Runnamoat) Bourke (Oory)	Coarsefield Netterville Lodge Oory/Coarsefield
Neville	Neville Peyton (Knockvicar)
Newcomen	Newcomen	Camlagh Esker Newcomen Castle
Newton	Newton
Newton (Carna)	Lynch (Barna) Strutzer
Neynoe	Neynoe	Castle Neynoe/Ballysumaghan House
Nicholls	Nicholls
Nicholson	Crichton, Earl of Erne Nicholson White (Kilmacowen) Mossman	Grange/Primrose Grange Glen Lodge Greyfort Cottage
Nicholson (Kilmoremoy)	Nicholson (Kilmoremoy)
Niddrie	Niddrie	Seaview or Doonecoy Cuffe House or Camcuil
Nixon	Nixon
Noble	Noble	Toberscanavan House
Nolan (Ardrahan)	Knox (Prospect) Nolan (Ardrahan)	Prospect (Kiltartan) Newpark
Nolan (Ballinderry)	Nolan/Ferrall (Lugboy) Nolan (Ballinderry) French (Portacarron) Nolan (Ballybanagher)	Portacarron Seamount Ballinderry Castlemoyle
Nolan (Ballybanagher)	Nolan (Ballinderry) Nolan (Ballybanagher)	Ballybanagher
Nolan (Cloverfield)		Cloverfield
Nolan (Lisnaneane)	Nolan (Lisnaneane)	Queensfort Lodge Lisnaneane
Nolan (Newtown)	Nolan (Newtown)	Newtown
Nolan (Tobercurry)	Nolan (Tobercurry)
Nolan/ Ferrall (Lugboy)	Nolan/Ferrall (Lugboy) Ferrall	Lugboy
Norris	Slacke Duckworth Norris
North	Handy North	Northbrook Cottage
Nugent	Nugent (Pallas) (Lord Riverston) Greville-Nugent (Lord Greville) Nugent (Earl of Westmeath)	Cloonteem
Nugent (Pallas)	Nugent (Pallas) (Lord Riverston) Nugent (Earl of Westmeath) Kelly (Cargins)	Rockfield House Pallas Spring Garden Flower Hill Ballynagar/Ballinagar Nutgrove
O'Beirne	O'Beirne (Sligo) Logan
O'Beirne (Dangan)	O'Beirne (Drumsna) O'Beirne/Byrne/Burns (Tinny Park) King (Ballylin) O'Beirne (Dangan) Browne (Cloonfad)	Dangan
O'Beirne (Drumsna)	O'Beirne (Drumsna) O'Beirne/Byrne/Burns (Tinny Park) O'Beirne (Dangan)	Jamestown House or Jamestown Lodge
O'Beirne (Gorteen)	Grehan O'Beirne (Gorteen)	Gorteen
O'Beirne/Byrne/Burns (Tinny Park)	O'Beirne/Byrne/Burns (Tinny Park) O'Beirne (Dangan)	Tinny Park Corrastoona More Ballymacurly
O'Brien (Carrigallen)	O'Brien (Carrigallen)	Cloghlough Drumsillagh
O'Brien (Fairfield)	Thorngate Molloy O'Brien (Fairfield)	Fairfield (Kilgerrill) Kilmore
O'Brien (Mohill)	King (Carrigallen) O'Brien (Mohill)	Cloghlough Riversdale Drumrahan Brooklawn or Clooncoe
O'Carroll	O'Carroll Roe	Carrolton House
O'Connor	O'Connor	Roadstown
O'Connor	O'Connor (Sligo)	Toberpatrick (Skreen) Ballyglass House Cairnsfoot
O'Connor (Corsallagh)	O'Connor (Corsallagh) O'Hara (Ballyara & Corsallagh)	Corsallagh
O'Connor (Tuam)	O'Connor (Tuam)	Hazelwood House
O'Conor (Ballagh)	Dillon (Mount Dillon) O'Conor (Ballagh)	Ballagh
O'Conor (Dundermot)	Scott/Hope Scott Browne (Oranmore and Browne) Peyton (Port) Blakeney (Abbert) O'Conor (Milltown) O'Conor (Dundermott) Hamilton Croghan	Corrastoona More Dundermot Laragh and Ross
O'Conor (Milltown/Milton)	O'Conor (Milltown) O'Conor (Dundermott)	Milltown
O'Conor (Mount Druid)	O'Conor (Mount Druid)	Bella Kilcorkey Mount Druid Killaster The Palace
O'Conor (Toomona)	French (Frenchlawn & Frenchbrook) O'Conor (Toomona)	Toomona
O'Conor Don	O'Conor/O'Conor Don Nolan (Lisnaneane)	Clonalis House Hermitage Bellanagare Castle
O'Conor Donelan	O'Conor Donelan	Sylaun Ballydonelan Castle
O'Donel	O'Donel Medlycott Lambert (Brookhill)	Newport House Ross House Melcomb
O'Donel (Newcastle)	O'Donel O'Malley (Newcastle)	Ross House Newcastle
O'Donnell (Boyle)	O'Reilly (Heath House) O'Donnell (Boyle)	Greyfield Lyonstown
O'Donnell (Kilcommon Erris)	O'Donel O'Donnell (Kilcommon Erris)	Kilcommon Lodge
O'Donnell (Larkfield)	O'Donnell (Larkfield) O'Donnell (Boyle)	Larkfield Greyfield
O'Donnell (Swineford)	O'Donnell (Swineford) Palmer, Baronet	Faheens
O'Dowd (Bunnyconnellan)	O'Dowd Downing McLoghry	Bunnyconnellan Cottage
O'Dowd (Tully)	Browne (Marquess of Sligo) Garvey O'Dowd (Tully)	Tully Lodge
O'Farrell/Farrell (Dalystown Demesne)	Farrell (Dalystown Demesne)	Streamstown House(Tynagh) Dalystown/Dalyston Carrowkeel Ballyargadaun
O'Flahertie (Lemonfield)	Hodgson Whitaker O'Flahertie (Lemonfield)	Lemonfield Ardvarna Derrymaclaughna
O'Flaherty (barony of Longford)	O'Flaherty (Lisdonagh) O'Flaherty (barony of Longford)
O'Flaherty (Knockbane)	Blake (Renvyle) O'Flaherty (Renvyle) O'Flaherty (Knockbane) Fitzpatrick	Knockbane Gortrevagh
O'Flaherty (Lisdonagh)	O'Flaherty (Lisdonagh) St George (Headford) Davies (Dunkellin) O'Flaherty (barony of Longford)	Lisdonagh Lydacan
O'Flaherty (Renvyle)	Blake (Renvyle) O'Flaherty (Renvyle) Browne (Rosleague) O'Flaherty (Knockbane) Shea	Renvyle Shinnanagh
O'Flynn
O'Grady (Kichreest)	Persse (Roxborough & Moyode) O'Grady (Kilchreest)	Kilchreest Glebe
O'Grady (Tavraun)	O'Grady (Tavraun) Molony	Tavraun Carrowbeg Barnaboy
O'Hara	O'Hara (Annaghmore) Cooper (Coopershill)	Newpark Annaghmore (Nymphsfield) Coopershill Cuiltybar
O'Hara	Gore (Earl of Arran) Knox (Moyne Abbey) O'Hara (Baron Tyrawley)
O'Hara (Ballyara & Corsallagh)	O'Hara (Ballyara & Corsallagh)	Corsallagh Ballyara or Ballyhara
O'Hara (Lenaboy)	O'Hara (Baron Tyrawley) O'Hara (Raheen) O'Hara (Lenaboy)	Lenaboy Nile Lodge Letter Lodge Streamsford Castletown
O'Hara (Raheen)	O'Hara (Raheen) O'Hara (Lenaboy) Forbes (Raheen)	Raheen Normangrove Derryhoyle Lydacan Lodge Caher
O'Hare	O'Hare
O'Kelly (Creeraun)	Browne (Ardskea & Cooloo) Bodkin (Kilcloony) Kilkelly (Summerville) Bodkin (Castletown & Mountsilk) Kirwan (Moyne) O'Kelly (Creeraun) Worthington	Mountsilk Cooloo Creeraun
O'Kelly (Gallagh & Ticooly)	Dillon (Clonbrock) (Lord Clonbrock) O'Kelly (Gallagh & Ticooly) O'Kelly (Fairfield)	Ticooly Gallagh
O'Kelly (Gortray/Fairfield)	Kilkelly (Summerville) O'Kelly (Gallagh & Ticooly) O'Kelly (Fairfield)	Gurtray/Gortrea/Gortray/Fairfield
O'Malley (Ballynalacka)	O'Malley (Ballynalacka) Graydon (Cos Galway & Mayo)	Ballynalacka Lodge
O'Malley (Eden)	O'Malley (Eden)	Eden Park
O'Malley (Galway)	O'Malley (Galway)
O'Malley (Hawthorn)	Bingham (Earl of Lucan) O'Malley (Hawthorn)	Hawthorn Lodge Snugborough Rossyvera
O'Malley (Kilboyne)	O'Malley (Kilboyne) Law Life Assurance Society Chambers (Kilboyne)	Kilboyne Rosmindle Rosehill
O'Malley (Kilmilkin)
O'Malley (Newcastle)	O'Donel O'Malley (Newcastle) Beckett	Newcastle Marino Lodge Spencer Park
O'Neill	Moore (Cloongee) O'Neill
O'Reilly	O'Reilly (Kildangan) More O'Farrell
O'Reilly (Colmanstown)	O'Reilly (Colmanstown)	Colmanstown
O'Reilly (Heath House)	O'Reilly (Heath House)	Greyfield
O'Reilly Dease	O'Reilly Dease
O'Rorke (Clonbern & Bermingham)	O'Rorke (Clonbern & Bermingham) Dennis (Bermingham House)	Clonbern Moyloughmore Bermingham/Birmingham House Taghboy House
O'Rorke (Oldcastle)	Bolingbroke O'Rorke (Oldcastle)	Oldcastle
O'Shaughnessy (Creagh)	O'Shaughnessy	Birch Grove
O'Shaughnessy (Gort)	O'Shaughnessy (Gort)	Lough Cutra (Lough Cooter)
O'Sullivan	Greene (Co Galway) Moore (Drum) O'Sullivan	Mount Florence
Ogilvie	Ogilvie Jennings (Ironpool)	Ironpool
Oldfield	Oldfield	Longford Glebe
Oliver (Cos Galway & Leitrim)	Oliver (Cos Galway & Leitrim) Oliver (Castle Oliver)
Olpherts	Olpherts	Tanrego Mount Shannon
Orme (Abbeytown & Glenmore)	Knox (Rappa) Fetherstonhaugh Handy Orme (Abbeytown & Glenmore)	Glenmore Abbeytown Rinroe
Orme (Ballycarron)	Steele Orme (Ballycarron)	Ballycarron
Orme (Owenmore)	Orme (Owenmore) Collum	Owenmore or Millbrook Belville Orme's Lodge
Ormsby (Ballinamore)	Miller (Milford) Ormsby (Ballinamore)	Ballinamore Castlelucas Knockmore Lakelands
Ormsby (Castle Dargan)	Fury/Furey Ormsby (Castle Dargan)	Castle Dargan
Ormsby (Cummeen)	Ormsby (Cummeen)	Cummeen (also spelt Cummin)
Ormsby (Farrenmacfarrell)	Ormsby (Farrenmacfarrell)	Farrenmacfarrell
Ormsby (Gortnaraby)	Ormsby (Gortnaraby) Ormsby (Rinagry)	Gortnaraby/Gortnor Abbey
Ormsby (Rinagry)	Knox (Castlereagh) Ormsby (Gortnaraby) Ormsby (Rinagry) Pery (Earl of Limerick)	Rinagry Cottage Killeena
Ormsby (Rocksavage)	Ormsby (Ballinamore) Ormsby (Rocksavage)	Rocksavage Grove
Ormsby (Tireragh)	Ormsby (Tireragh)	Rathmeel
Ormsby (Tobervaddy)	Ferrall Ormsby (Tobervaddy, Shrulegrove & Grange) Waller (Rookwood)	Shrulegrove Rookwood Tobervaddy Brook Lodge Grange House
Ormsby Gore	Caulfield Ormsby Gore (Baron Harlech) Nisbett	Clooskirt Carns Lodge Derrycarne Willowbrook Carrickcoola Leitrim House (Achonry) Branchfield House (Leyny)
Ormsby Ruttledge	Ormsby Ruttledge	Belville (Kilmacshalgan) Knockaculleen A
Orr	Orr	Lancaster House or Lancaster Park
Ouseley	Bagot (Bagotstown, Ballyturin & Aghrane/Castlekelly) Ouseley	Prospect Dunmore Castle
Paget	Knox (Castlereagh) Paget	Kinard Lodge Knockglass Fahy
Pakenham	Sandford (Baron Mount Sandford) Pakenham Dowdall Mahon/Pakenham-Mahon (Baron Hartland)	Mullymucks Mullymucks 2 West View (Glandore)
Palmer	Knox (Rappa) Palmer, Baronet Waldron Richey Stuart Echlin	Palmerstown Castle Lackan Keenagh Lodge Carrowmore Farragh Ardagh Lodge Fort Laurel
Palmer (Leitrim)	Palmer (Leitrim)	Friarstown Sriff or Sriff Cottage Drumkeel Glasdrumman More
Palmer (Lickmolassy)	Palmer (Lickmolassy)	Palmerstown or Pokoroko
Palmer (Summerhill)	Knox (Castlereagh) O'Hara (Baron Tyrawley) Palmer (Summerhill)	Summerhill
Parke	Parke	Doonally Old Rock Faughts Cottage
Parsons	Parsons	Garadice
Pelly	Pelly Mennons	Ballybride
Penrose	Penrose	Corduff House
Perceval	Perceval Hall-Dare	Temple House Greyfort Somerton Larkhill Quarryfield Thornhill (Ballinacarrow)
Percy	Percy	Willowfield Garadice Drumdartan Glebe Boeeshil House Drumliffen Glebe
Perdue	Ormsby Gore (Baron Harlech) Perdue	Carns Lodge
Perkins	Gore (Earl of Arran) Perkins Fallon Dundas	Ballybroony
Perry	Perry Goodbody (Clara)	Newford Cullairbaun
Persse (Roxborough & Moyode)	Persse (Roxborough & Moyode)	Roxborough Moyode Bookeen Glebe Gammahoe Cottage Limepark Woodville House Castleboy Newcastle Tallyho Lodge Ashfield House Kilchreest Glebe Spring Garden Perssepark Mount Vernon Glenarde Chevy Chase Cottage. Ashford Old House Boyhill House
Pery/ Pery Knox Gore	McManus (Barleyhill) Knox Gore Howley Pery (Earl of Limerick)	Belleek Castle/Ballina House Coolcronaun
Peyton (Castlecarra)	Peyton (Castlecarra)	Castlecarra (Leitrim) Knockvicar
Peyton (Driney)	Peyton (Driney)	Driney
Peyton (Grevisk)	Peyton (Grevisk)	Grevisk
Peyton (Knockvicar)	Barton Peyton (Knockvicar)	Knockvicar Lough Key House Carrickard House
Peyton (Laheen)	Chambers (Kilboyne) Peyton (Laheen) French (A J)	Laheen Creagh's Villa
Peyton (Loughscur)	Peyton (Loughscur)	Loughscur
Peyton (Port)	Peyton (Port) O'Conor (Dundermott)	Port
Phibbs	Phibbs	Doobeg
Phibbs (Drumlease)	White Phibbs (Drumlease) Whyte (Carrickfad)
Phibbs (Seafield)	Phibbs	Seafield or Lisheen Springfield Strandhill House
Phibbs (Spotfield)	White Phibbs (Spotfield)	Bloomfield Spotfield
Phibbs (Tirerrill)	Phibbs Culbertson	Corradoo Lodge Rockbrook Doonally Lisconny Heathfield (Sligo) Kilboglashy Brick Field
Phillips	Phillips Sadlier (Ballintemple & Shrone Hill)	Cloonmore
Phillips	Phillips (Sligo)	AbbeyView
Pigot/Pigott	Pigot/Pigott	Oakley Park Eagle Hill
Pike	O'Donel Pike	Glendarary House
Pilkington (Abbeyville)	Pilkington (Abbeyville)	Abbeyville
Pim	O'Donel Pim	Rossanrubble
Pim (Co Roscommon)	Pim Dillon (Johnstown)	Ardmullan
Pitcairn	D'Arcy ( Houndswood) Guinness Pitcairn Strachan	Castletown
Plunket (Toormakeady)	Moore (Moorehall) Lynch Blosse Plunket (Baron Plunket) Mitchell (Toormakeady Lodge) McCausland	Toormakeady Lodge Drimbawn
Plunkett (Castleplunket)	Murphy (Castlereagh) Plunkett (Castleplunket)	Mullen Ardkeenagh (Plunkett) Castleplunkett Kinard Corbally
Plunkett (Dunkellin)	Plunkett (Dunkellin)
Plunkett (Mountplunkett)	Grehan Crotty (Mountplunkett) Plunkett (Mountplunkett)	Mountplunkett
Pollexfen	Pollexfen	Nazareth House Avena House
Pollok (Lismany)	St George (Tyrone) Pollok Kenney/Fitzgerald-Kenney Daly (Eyrecourt) Burke (Glinsk) West (Lismany)	Ballynamuddagh Woodview Kilquain Oghil Sycamorehill Annaghcorrib Kylemore (Clonfert) Crowsnest Lismany/Lismanny Fairfield Millford Skehaghard Curraghbog Lisbeg Lissanacody
Ponsonby (Bessborough, Earl of )	Ponsonby (Earl of Bessborough)	Mount Richard Tinvane
Popham	Popham	Kevinsfort Ballymore
Porter	Lindsey Porter (Belle Isle)
Porter	Evans (Cross House) Porter
Potter (Mount Potter)		Kilcloghan
Potts	Potts	Clooncannon/Cloncannon/Runnamead Scregg Crannagh Kilgarve House Correen
Powell	Powell	Cuilmore Powellsborough
Powell	Powell	Lisserlough Ellesmere
Power (Galway)	Power (Kilconierin)
Pratt	Jackson Pratt	Enniscoe
Prendergast (Ballygowan)	Prendergast (Ballygowan)	Ballygowan
Prendergast (Gort)	Vereker (Viscount Gort) Prendergast (Gort)	Lough Cutra (Lough Cooter) Milford
Prendergast (Kiltormer)	Prendergast (Kiltormer) Kelly (Lisduff)
Prendergast (Loughrea)	Prendergast (Loughrea)
Prior (Ross House)	Tulloch Prior (Ross House)	Ross House
Pugh	Pugh Palmer, Baronet Rashleigh	Lissadrone Smithstown House
Quin	Quin
Ramsay	McTernan Ramsay Burton (Burton Hall)