Ireland Surname Registry, M to O surnames

Surname	Ireland County	Where Emigrated	Time line	Contact
MacCarthy	Fethard, Tipperary	Refrewshire > Sydney AU	1880 on	Maggi
MacCarthy	Naddmore, Banteer, Lyre, Cork	Australia, US, Fr	1820 on	Leonard Pearsell
Macauley	Ballintaggart, Co Armagh; Armagh Portadow, Co Tyrone	Ohio, USA	1920	Brenda Battler
MacGiolla	Roscommon	Ontario CAN	1829	Vicki Gilhula
Macken	Granard, Co Longford	Brooklyn NY	1848	Pat Wood
Mackey	Cobh, Co Cork	British Burma	1874-1931	James N Mackey
Mackey	Kilkenny	US	1929 on	Jackie Trock
Mackey	Cork	Boston, NJ	1872	Susan Hollenbeck
Mackey	Dublin	New Zealand	1921 on	William & Mary
Mackey	not given	not given	1830-1870	Ruth Briggs
Madden	Old Leighlin or Leighlin Bridge	Kiama, Australia	1840-70	Glen Brown
Mahedy, Mahady	possibly, Co. Longford	Brooklyn, NYC	ca 1835	Robert Gallagher
Magauran	Oteragh, County Leitrim	not given	1829-1903	Jean
Magee	Dublin	did not emigrate	1750-1900	Michelle Wilson
Maguire	Cleggan, Cleenish Parish, Fermanagh	Toronto/York, Ontario, CAN	1847	Carl Maguire
Maguire	County Cavan	did not emig	1853+	John J Bohnert
Maguire	Tryone to Belfast	did not emigrate	ca 1851-2	Muriel Caldwell
Maher	Co Tipperary	Iowa, USA	1880	Cheri Hill
Maher	Galway	Manchester, England	1860 onward	C Feeney
Maher	County Laois	New Haven Co, CT	1842 onward	Janet Maher
Maher	unknown	Omaha NE	1880s	Michael Maher
Maher	Roscrea, Co Tipperary	not given	from 1855	Marianne Bonner
Mahon	Kilkenny	England	1844-45	Keith Darnell
Mahon	East Galway	Brooklyn NY	1820-80	Pat Wood
Mahoney	Co Clare, Athlunkard, Knockballynameath	unknown	1849-1900s	Judith Mason
Mahoney	Kilmoe, Goleen, Cork	London	1870	Mary Simpson
Mahoney	not given	not given	1830-1870	Ruth Briggs
Mahoney	Castlegregory, Co Kerry	Boston MA	1913-20	Joe Allen
Mahoney	unknown	Auburn NY	1870s	Daniel Mahoney
Mahony	Doon Village or Kilmoylan Upper	QLD, Australia	1891	Brendan
Maley, Malia	Clare	New Haven CT	1860s	Melody Masi
Malley, Malia,Maley	Kilkelly, Louisburgh, Co Mayo	Thompsonville, New Haven CT	1865-1870	John Malley
Malone	Castlecomer, Kilkenny	Ramsey, Twsp., Ontario	1844	Marilyn White
Maloney	Mayo or Limerick	Sydney, NSW, Aust.	1833	Dee
Maloney	Castleconnell, Limerick	Reidsdale, NSW, AU	1850-present	Colin B Maloney
Maloney	Currow, Co Kerry	NY, NY	1800-1900	James O'Leary
Mallalla	Galway region	not given	not given	Thomas Mullally
Malloy	Waterford	Ontario, Canada	1830-55	Barclay Mulligan
Malloy	Co Offaly	Philadelphia PA	from 1860	Marianne Bonner
Mangan	Limerick	New Zealand, Australia	1850-1930	Julie
Mangan	Glin, Co Limerick	Passaic NJ	1900	Elizabeth Baehrel
Mangan	Limerick	NSW Australia	1850-1915	David
Manley	Cork or Mayo	unknown	1840-1899	Terry Garrett
Mannell	not given	not given	not given	Joyce Mannell
Manning	unknown	Troy NY	1840-1900	Eileen Manning
Manning	Co. Cork	Troy NY	1880-94	Rita O'Brien
Mannion	Killian/Ballygar, Galway	Chicago	1860s	Diane Culhane
Marinan	Clare	Davenport, Iowa	1849	John M Dooly
Mark	Clogh, Co Antrim	Scotland	1800+	George Mark
Marlin	Curran area Co. Derry	Scotland >>Tasmania AU	1886 Tasmania	Laurie Marlin
Marsh	Co Mayo	not given	not given	Madonna Lechner
Marshall	Killinchy area, Co Down	IL	1850	Pat
Marshall	Co Laois and ?	USA, IN	ca 1854	Mary Conroy
Mateer	County Down	NYS, USA	not given	Karin
Martin	Downpatrick or Saul Parish, Co Down	unknown	1793	Carl Maguire
Martin	Co Dublin, Co Louth	NYC, NY	1889	Ray Veth
Martin	Coolkeeragh, Longfield East parish, Co Tyrone	New York NY	1846	Carolyn Cowart
Martin	Co Tyrone	England	1815-1840	Ruth MacKay
Martin	Donaghmoyne, Co Monaghan	Hartford CT > NYC	1880-1885	Jean Dupon
Martin	Carnmoney, Antrim	not given	1625 on	Nancy Jewel
Mason	Co Clare	Parteen, Athlunkard, etc.	1775-1900s	Judith Mason
Mason	unknown	Bilston, Wolverhampton ENG	1690 on	Anita Walker
Mathers	Co. Tyrone	Co. Cork	1834	Joyce A Hall
Mathison	Co Down	Battersea, Storrington Twp, CAN West	1824-46	Esther Mitchell
Matthews	Co Cavan	USA	1890	Sylvia Kendrick
Maunsell	Castlegregory, Co Kerry	CT	1898	Maunsell
Mavity, McVittie	Fermanagh, Cavan	Virginia	1765	Brian Mavity
Mayer	Down	Sidney Australia (1832)	1800-1845	Marie Riley
Maxwell	Corrock, Co Down	Australia	1800, 1870	Meryle Maxwell
McAdam	Cloncore, Co Armagh	London ENG > Adelaide So Australia 1855	1833 (born)	Pat Rawlings
McAfee	not given	NY	1830-90	Kevin Fitzpatrick
McAllister	Antrim	New Brunswick CAN	1785-1835	Douglas McAllister
McAllister	Belfast, Dublin	Eire	pre 1900	Michael McAllister
McAllister	Dublin	England	1925 on	Michael McAllister
McAllister	Ballycastle Co Antrim	unknown	1850-1900	M E Wagner
McAnulty	Knocknagarmon, Inniskeen Par. Co Monaghan	Victoria, Australia	1860	Janet McNulty
McArdle	Co Louth	Pittsburgh	1866	Thomas McCarroll
McArdle	Cullyhanna Parish, Co Armagh	NY, Indiana	1869	Kevin McArdle
McArdle	Co Monaghan	New York	1846	Bob McArdle
McArdle	Dundalk, Co Louth	Chicago IL	1886	Susan R Clark
McAslin	Co Antrim	Scotland	1800+	George Mark
McAtee	Ulster	Baltimore MD	1594 on	Darrel McAtee
McBrearty	Killaghtee CP, Donegal	Brandon, ONT, CAN	1862	Geraldine Raudzens
McBride	Donegal	New York, Castle Gardens	1862	Susan McBride Cook
McBride	Dromara, Artana	NY, Rensselaer Co.	late 1860s	Cynthia
McCabe	Headford, Co Galway	Wilmington DE	1876	Sheila Swierczewski
McCabe	Co Cavan or Longford	Australia	1850-60s	Marilyn
McCabe	not given	not given	1895-1905	John C Snodgrass
McCafferty	left @ Londonderry	New York	arr June 1824	Brenda J Rider
McCaffrey	Northern Ireland	Quebec CAN	1841	V Eggen
McCaffrey	Co Meath	USA, WI	1831-87	Bruce R Bucholtz
McCalmont	Islandmagee, Co Antrim	Canada	1906	Roger McCalmont
McCann	Meath or Westmeath	NY to PA	1847-52	Patrick M McCann
McCann	Antrim	Canada	1930	Sabrina Hysa
McCann	Cush, Clonaslee, Co Laois	Port Jervis NY	1925	Robyn Fulk
McCanney	Drumquin, Co Tyrone	Philadelphia PA	1815, 1845	Mary M Finley
Mc(C)ardle	Donegal ?	Mauch Chunk PA	1840s	Megan Marsh
McCarren	Co Donegal	Armstong County	1847	Dan Sherman
McCarroll	unknown	USA, CT	1883-1900	Kelly Scottisheart
McCarthy	Bandon & Kilbrogan	Ottawa ONT	1839	Bill Lavery
McCarthy	Cork	Stepney, England	1840s	Angie
McCarthy	unknown	did not emig	1880-1883	Maureen
McCarthy	Templemichael, Ballinhassig, Cork	London	1905	Mary Simpson
McCarthy	Cork	Kent, England	1841	Janice Angell
McCarthy	Bandon, Co Cork	N.S.W., Australia	ca 1822	Marie Payne
McCarthy	Banteer, Lyre, Cork	Melbourne AU	1880-present	Leonard Pearsell
McCarthy	County Cork	Syracuse NY	not given	Toni McCarthy
McCasker	Armagh	Australia	1817	Susan Hazell
McCaughan	Antrim	New York	1806, 1843	Pat McDermott
McCauley, McAul(l)ey	poss Dublin	So. Australia	1837-55	Karrix
McCaveney, McKeaveney	Co Armagh	New Zealand > AU	1925-1940	Joyce
McCayghey	Antrim	PA, WI	1844-60	Arlene Finley
McClaren	Co Armagh	Ontario	1820-60	Ida Maloney
McCaughey	Antrim	PA, WI	1844-60	Arlene Finley
McClaughry	Co Sligo	Maryland	ca 1774	Kevin Cooper
McClaughry	Clonbroney Par., Co Longford	Delaware Co, NY	1747	Melissa Ambrose
McClelland	Ballymoney, Co Antrim	not given	1768-1880	Trish McClelland
McCloskey	Culdaff & Oldtown, Co Donegal	Camden County NJ, Philadelphia	1820-70	MaryLynn McCloskey
McCloskey, McClusky	Co Derry, Dungiven or Ballykelly	Philadelphia ,PA, >> Wilmington,DE	1825-1909	Doris Brostrom
McCloy	Antrim	Winnipeg, Canada	1876	Gail
McCombs	Ulster	RI, USA	bef 1824	Frank Ward
McCombs, McComb	Keady parish, Co Armagh	Troy NY	early-mid1800s	Tammi Mitchell
McConkey	Belfast, No. Ireland	Rockwood, Randolph IL, USA	1860	John J Wilson
McConnell	Co Tyrone	Londonderry > St John, NB, CAN	1830	Eva
McConnell	Saintfield, Co Down	unknown	1901-1911	Erla Angell
McCormack	Kilkenny	LA, KY, Ontrion, MI	1853	Jeff Ford
McCormick	Tipperary	1849 Tipperary	1793-1843	Marie Riley
McCoy	Kilcolman, Limerick	Australia	1856	June Shanahan
McCoy	Co Limerick	Indiana? USA	1849-54	Melody Marshall
McCracken	Belfast, Co Antrim	South Australia	1860 on	Di Comley
McCracken	Belfast, Co Antrim	NY	1850-1900	Rich Nicholas
McCracken	Co Antrim	N.S.W., Australia	1839	Marie Payne
McCrystal	Tyrone	1835 Australia	1816-1874	Marie Riley
McCrory	Co. Monaghan	New York City	1840-1844	Faith Poole
McCrubb	Co Antrim	NY; Ridgeway WI	early 1800s	Mary Yamamoto
McCue	Co Cavan, Ballamore?	Perth, ONT, Canada	1820-1826	Mike McCue
McCullough	Banbridge, Co Down	Bruce Co, Ontario CAN	1849	Anna Tucker
McCullough	Downpatrick, Co Down	Australia	ca 1860-5	Merv McCullough
McCullough	not given	England	1850-78	Alan Williams
McCully	Banbridge, Co Down	Scotland	1850	Ellen Kennedy
McCune	Ballygorman, Co Armagh	Quebec CAN	1828-30	Marion Paquet
McCurdy	Co Antrim	Pennsylvania	1705-61	Jim McCurdy
McCurdy	Ballycastle Co Antrim	Refrewshire > Sydney AU	1835-1950	Maggie
McDermid	anywhere	Scotland	not given	Marjorie
McDermott	Kildare	CT, USA	1849-1935	Peggy
McDermott	Co Mayo	Canada	1843-45	Jerome J McDermott
McDermottroe	Copse, Co Roscommon	IL	1863-1919	Pat
McDonald	Newry	Scotland	1890-1900	John Harold
McDonnell	Co Mayo	Pittston PA	1860	Jeanne Bilsky
McDonagh	Shanaghy, Bohola, Co Mayo	not given	not given	Ann
McDonald	Roscommon	Dorset VT	1880-90	K McDonald
McDonald	Co Clare	St Marys, Ontario, CAN	1821-65	Marianne Powers
McDonald	Cork, Midleton	England	1800s-early 1900s	Eileen McDonald-Sayer
McDonald	Co Wexford	Ipswich, Brisbane AU	1856	Louise Barry
McDonald	unknown	Troy NY > St Paul MN	1849-57	Connie McDonald
McDonough	Sligo	Co. Portneuf, Quebec CAN	ca 1832	Denis Savard
McDonough	Sligo	Troy NY, Columbus OH, WI, MN	1851-1867	Pat Dorsey
McDonough	unknown	Ironton OH	mid 1850s	Bill McDonough
McDonough	Drumshanbo, Co Leitrim	Oxford OH	not given	Susan Kail
McDonough	unknown	West Troy NY	1846-1880s	Pat Wood
McDuffee	Antrim	New Hampshire, USA	1600-1725	Colin Brooks
McElgunn	Ireland	New York USA	1927	Deirdre Fox
McElgunn	Fermanagh	not given	not given	Elizabeth Bogue
McElhinney	Kilmacrenan, Co Donegal	unknown	1780-1857	Anne Rutherford
McElveen	unknown	PA	1739-1800	Shelley Gauna
McEneny	Banbridge, Co Down	Salford, England	1852-1915	Alan Williams
McEntee	Co Mayo?, Co Monaghan? Co Cavan?	Albany, Troy NY, maybe PA	ca 1790s-1900s	Pat Connors
McEntyre	Cavan	Victoria, Australia > Arrowtone, NZ	1832 onward	Maria McEntyre
McEnulty	Knocknagarmon, Inniskeen Par. Co Monaghan	Victoria, Australia	1860	Janet McNulty
McErlane, McLean	Londonderry	Scotland	1865-6	Cathy
McEvoy	Rathsallagh, Dunlavin, Co Wicklow	Australia	1830s on	Jane Cleary
McEvoy	Dundalk, Co Louth	Australia	1852	Jenny Craig
McEwan	Kirkubbin, Co Down	Scotland	1800	Ann Gray
McFadden	Cavan, Bailieborough	Australia	1844	Janice Angell
McFadden	Clondahorky Par, Co Donegal	USA mainly PA	1800 on	Anne Rutherford
McFadden	unknown	Canada	1860-1910	Sandra McFadden
McFadden	NW Donegal	All Ports	1880-present	Henry McFadden
McFall	Ballycastle, Fallintoy	New York State	1893	Margaret
McFarlane	Waterford & Wexford	Scotland, Australia, England	late 1880s-1900s	Debra Buchanan
McFaul	Aghadowey, Co Derry	Chilliwack, BC, Canada	1911	Ken McFaul
McGann	unknown	Westchester Co, NY	1832-55	Carol McGann
McGann	Co Clare	New Zealand	1860s	Lorraine Anderton
McGarvey	Cavan	Scotland, USA-MA	1845-1900	John Kelly
McGaughnea	unknown	Liverpool	1860s	Mary Frisbee
McGee	Co Down	Quebec, CAN	1820-60	Dillon McGee
McGee	unknown	Schuylkill Co, PA	unknown	Lorraine Hanley
McGee	Belfast (?) Co Antrim	NY >> San Francisco	1885-1900	Janet Sandberg
McGeever	Meelick, Co Mayo	Stoke-on-Trent, Staffordshire	pre 1868	Karen Ford
McGiffert, McGifford	Co Down	Australia	1800-1890	Meryle Maxwell
McGifford	Down	Australia	not given	Debra
McGifford	Downpatrick	not given	1800-50	Bluebird
McGinn	Armagh	Ulster County, NY	by 1850	Howard McGinn
McGinty	Co Donegal	Philadelphia PA	from 1860	Marianne Bonner
McGirr	Armagh	Montreal > IL > Beatrice NE	1800s	Anita Gorglione
McGirr	Co Armagh or Tyrone	Allegany (Garrett) Co, MD	1815	Larry McGirr
McGlin	Castlederg, Co Tyrone	Meriden CT	1840s	Ray
McGloin	Leitrim	USA	early 1900	Mary
McGloin	near Galway	New York City	1920	Colleen
McGlynn	Mayo	NY, Brooklyn	1800	Nan
McGlynn	unknown	Johnstown NY	1800	Nan McG
McGlynn	Co Longford	Philadelphia PA	ca 1900	Brian Wray
McGonagle	Co Donegal	Armstong County	1847	Dan Sherman
McGovern, McGauran	Rath, Forgeny, Co Longford	NY	1800	Kevin P Flood
McGough	Castelblayey	Liverpool	1840s	Deanna Smith
McGrath	Limerick, Oola & Pallas	Illinois USA	1850	Chuck Real
McGrath	Co Kerry	Newfoundland, CAN	1839	Barb Derick
McGrath	Doonbeg, Co Clare	NY, NJ	1860 onward	Barbara McGrath
McGrath	Ballyhagen, Co Tipperary	New Orleans LA	1848-1856	Howard D Sheppard
McGrath	Co Longford	Scotland PA	not given	Patricia C Coogan
McGrath	Kilfearagh, Co Clare	New Jersey	1880-1925	Kwirth
McGrath	Carrigaholt, Moyarta	Hamilton, Ontario	1815-1890	Sally Masson
McGrath	Kilfearagh, Co Clare	did not emigrate	1880-1925	Kwirth
McGraw	Ballee, Co Down	St Andrews, New Brunswick	1830-31	Don Ondracek
McGuckin	Co Tyrone	Paterson NJ, Yonkers NY	1830-1899	Bill Bennett
McGuane	Co Clare	did not emigrate	1800-1830's	Joseph Dorsey
McGuire, Maguire	Wicklow	Ontario, CAN	1852	Mary Beth Raycroft
McGuire, Maguire	Westport, Co Mayo	Eng > CAN> KY>OH >IN	1853	Linda Rodgers
McGurn, Magauran, McGauran	Co Cavan, Leitrim?	Glasgow, Lanarkshire, SCOT	1870s	Anne
McHallen etc.	unknown	Roxbury MA	1840-50	David Nicholas
McHenry	Co Antrim	Philadelphia PA	1861-1928	Mike McHenry
McHugh, McCue	Donegal	Philadelphia PA	1850-on	Anne Rutherford
McHugh	unknown	PA, NJ, MO	1820-80	Judy Hall
McHugh	Donegal	PA, USA	late 1800s	Frank Yaccino
McHugh	Curraghmore, Co Fermanagh	Australia	1834-1870	Terry McHugh
McHugh	mostly Galway	Boston MA	1840-1914	Sandy Mullen
McIlvana, McIlvana	Antrim	Boston MA	1850s	Sara Mallett
McIlwaine	Belfast	Detroit MI	1920-22	Deirdre Donahue
McInerney	Bodyke, Co Clare	N.S.W., Australia	1850	Marie Payne
McInerney	Co Clare	Canada	1840-60	Anne Glock
McInerney	Kilfrearagh, Kilrush Co Clare	Elmira, Chemung Co NY	1872	Anne Green
McKaig	Galway	Philadelphia	1860	Darrell McKaig
McKeag	Kircubbin Down	Australia	1850	Jenny Hall
McKeating	Killard, Downpatrick, Co Down	Vancouver, B.C., Canada	1882-1961	Eric Hartney
McKeaveney, McCaveney	Co Antrim	not given	1882-1961	Joyce
McKeefry	Granaghan, Swatraigh, Derry NI	New York City, USA	1895	McGem
McKeefry	Maghera, Co Derry	Ontario CAN > NY	1911-23	G.W.
McKellar	kilmoremoy, Co Mayo	not given	not given	Geri
McKenna	Monaghan, Co Monaghan	Westchester CO > Brooklyn > Yonkers NY	bef 1862 onward	Kevin M Hayes
McKenzie	Co Mayo	Oneida NY > Sheboygan WI	1806 onward	Kay R
McKeon	Sligo, most likely	Schuylkill Co, PA	1840 onward	Mary Ann Lubinsky
McKeough	unknown	Canada	1850s	Mary Ann Larson
McKeown	Belfast, Ballyclare, Ballynure, Antrim	New Zealand	1878	Dorothy Derecourt
McKeown	Cork, Co Cork	Troy NY	1880-1919	Rita O'Brien
McKeown, McEwan	Cappagh, Co Tyrone	Scotland	1800	Rusty Russell
McK(i)ernan	Drumkeeran Co Leitrim	Phila, So. NJ	1850-1900	M E Wagner
McKiernan,McKernan	Ballycastle, Co Antrim	unknown	1800-1900	M E Wagner
McKinney	Armagh	New Brunswick, CAN; ME, NJ	1817-64	Karen Brooks
McKinstry	Carrickfergus, Co Antrim	Bucks, Philadelphia, PA	1730-40	Bob
McKinstry	Belfast	Philadelphia	1911-25	Joe Hunter
McKitterick	Bere Island, Carrick Magheross	Everett MA	1870-1892	Karen Kelly
McLafferty	Co Donegal	Rosemount, MN	1820-1900	Mary Jones
McLaughlin	Tyrone	Hull, UK	1780-1900	Pauline Mayland
McLaughlin	Roscommon	Dorset VT	1860-90	K McDonald
McLaughlin	Mullingar	NY	1857	Florence A Kissane
McLaughlin	Co Galway	NY, IL, CA, WA	not given	Patricia C Coogan
McLaughlin	near Belfast	Canada	1800-1920	Maralee Groome
McLaughlin	unknown	Boston MA	1800s	Bernadette Maurer
McLaughlin	mostly Galway	Boston MA	1840-1914	Sandy Mullen
McLaughlin	poss Co Cork	US	1850-70	Kate Fredericksen
McLean	Co Tyrone	Brantford, ONT, Canada	1850	Lori Hamilton
McLean	Balleycastle, Co. Mayo	Nova Scotia CAN	1830	Jean Covert
McLean, McClean	Co Down	Grey Co, Ontario CAN	1853-1855	Rene
McLean, McClean	Lisburn	Ontario CAN	1855	Rene
McMahon	Clare	USA, NH	not given	Dorothy McMahon
McMahon	Ballingarry, Limerick	Melbourne AU	1860	Leonard Pearsell
McMahon	unknown	Pittsfield MA	1860s	Kay Bailey
McManus	Cavan	Ontario, CAN (Upper Canada)	1828	Robert Ireland
McManus	Donegal	Sydney AU	1995	Lorraine McManus
McManus	Cavan	did not emig	1800-1900	Val Oliver
McMenomy etc	Killygordon, Co donegal	NJ > San Francisco	1871-2	Pat Bogue
McMuldrough	County Down	South Carolina	1763	John McMuldroch
McMullan	unknown	Cumbria	1860?	Neil Watson
McMullen	Callan, Kells, Castelcomer, Co Kilkenny	Orillia, Ontario CAN	1846	Lyn David McMullen
McNally	not given	England	1800s	Vanda Francis
McNalty	Knocknagarmon, Inniskeen Par. Co Monaghan	Victoria, Australia	1860	Janet McNulty
McNamara	Upper Kilbane, Co. Clare	did not immigrate	n/a	Judith Mason
McNamara	Co Limerick	Tasmania	1849	Mary Landers
McNamara	Co Clare	Australia	1849+	Frances Terry
McNeely	Armagh	Battersea, Storrington Twp, CAN West	1798 to present	Esther Mitchell
McNeill	Co Antrim	Tyendinaga Twp, Ontario	1840s	Marybeth Corrigall
McNicholas	Mayo	Chester-le-street, ENG	1930-50	Martin McNicholas
McNicholas	Bohola, Mayo	Wigon, Lancashire, ENG	1800-80	Margaret
McNulty	Knocknagarmon, Inniskeen, Co Monaghan	Victoria, Australia	1860	Janet McNulty
McPadden	Derrintawy Glebe, Innishmagrath, Co Leitrim	New York, St Louis MO	not given	Ann
McPadden	Derrintawy Glebe, Innishmagrath, Co Leitrim	did not emig	1800 to present	Maura McPadden
McQuaid	Tummery, Dromore, East Omagh, Co Tyrone	Monson MA, USA	1880	T T McQuaid
McQuillan	Co Antrim	Australia	bef 1840	Vicki Strickland
McShane	Co Armagh	Omaha NE	1880s	Michael Maher
McShane	Kircubbin	did not emig	1821-1891	William A Seely
McShane	Co. Louth	England	1850-1910	Ron McShane
McSheffery	Cardonagh, Donegal	Canada, NYC	1857	Barbara
McTague	Kilmacrenan, Co Donegal	Albany NY	1830-1860	Sheila Addison
McTavey	Castleblayey	not given	1823	Deanna Smith
McTernan	Leitrim	United Kingdom	not given	Patrick McTernan
McTigue	Islandeady, Mayo	Liverpool & Chicago	1870s & 1880s	Diane Culhane
McVeigh	Newcastle, Co Down, Ballaghby	USA	1932	Christine Delaplace
McWilliam(s)	Co Armagh, Tyrone	Australia, USA	1800s	Jill Glover
Meade	Co Meath	NY, Iowa, USA	1850s	Cheri Hill
Meade	Co Cork	Philadelphia PA	1880	Marianne Bonner
Meagher	Tipperary	Baltimore	1810	Linda Jenne
Meagher	Tipperary	Stoneham MA, USA	ca 1846	Patti Hoffman
Mean(e)y	poss Dublin	Jersey City NJ	1860s-present	Lorraine Hanley
(O)'Meara	Lissavane West, Co Kerry	Peabody, Lynn MA	1890-1910	John Bierman
Medlan	unknown	Philadelphia PA	1904-on	Anne
Meehan	Dungarvan, Waterford	Montana	1908	Pat Crane
Meehan	Co Clare	Australia	1840	Clare Taylor
Meehan	Sligo	NY > Westbury LI	1901-1930	Mary M Meehan
Meehan	Cappamore, Co Limerick	Australia	1857	Sharon Southall
Meehan	unknown	Eng>Atlantic City NJ>Baltimore MD	1880s	Erin Sullivan
Meehan	unknown	Pennsylvania USA	1880 to 1930	Mary P
Meekins	not given	Phila., Lancaster, Wilkes Barre, PA	1850	Walton J Sullivan
Melia	Headford, Co Galway	Liverpool ENG	1840s-1860s	Michael Melia
Mellows	poss Dublin	not given	not given	Peter Gainsborough
Merrigan, Merigan etc	Wicklow, Blessington, Swords	Canada, USA, Australia	1845?	Debbie
Mescall	Co Clare	US	1912-22	Bernadette Hudson
Milam	not given	not given	1625	Babette M Weil
Millen	Derry	New York	1854-59	Joan
Miller, Millard	unknown	Quebec, Valcartier	ca 1817	Mona Savard
Minahan	Clarina, Co Limerick	Queenstown to NY	1889	Michael E Minahan
Minihane	Ballyalley, Co Cork	SD	1846-1930	Jean W Copeland
Minogue	Co Tipperary	Troy NY, Poultney, Fair Haven VT	1854-1860	Michael Minogue
Missett	Killalla Par, Co Mayo	Carbondale PA	1850-	Carol Collins
Mitchell	Monaghan	Sydney, Australia, 1841, 1855	1780-1855	Shirley Harper
Mitchell	Portumna	1954 Boston MA	1917 on	Noreen Denaro
Mitchell	??	London, England	pre 1830s	Dorothy
Mitchell	Portumna, Galway	Kingston NY	1849-present	Judy Christopher
Mochan	Donegal	Duntocher, SCOT	1840-50	Mary K Small
Moffatt	unknown	Whitwick, Leicesters, W Yorks, UK	ca 1860s+	Sue
Molloy	Ballybricken, Waterford	New York City	1896	John Moran
Moloney	Clare	Knockballynameath, Athlunkard etc	1880-1900s	Judith Mason
Moloney	Clooniff, Moycullen, Galway	Boston MA	not given	Patricia Concannon
Moloney	Co Clare	Australia	1852	Lesley
Monahan	Monaghan, Monaghan County	Newark, New Jersey	1828-1855	Jack Cipriano
Monaghan	unknown	NYC, NY	1888-	Joanne Lattrell
Monaghan	Tipperary	Australia	1820	Patricia
Monahan	Ballyjamesduff, Co Cavan	New York, NY	1892-1920	Florence Monahan
Monahan	Monaghan, Co Monaghan	Newark, NJ	1840-1855	Jack Cipriano
Monahan, Moneghan	Roscommon	USA	1827-40	Ronald Coon
Moncrief, Moncrieffe	Cos. Monaghan, Cavan	Philadelphia PA	ca 1982	Virginia D Gross
Montgomery	No Ireland	not given	1776+	Mary
Moody	Northern Ireland	Canada, Australia, USA	1830-90	Debbie
Mooney	Co Donegal	unknown	1831	Norma Milne
Mooney	Tipperary and Waterford	USA - Troy NY	1863-1865	Patricia M. Mooney
Mooney	unknown	Kiama?, NSW, Aust.	ca 1860-65	Dee
Mooney	Belfast	not given	not given	Geraldine Mooney
Mooney	Kilmacthomas, Waterford	Mass.	1884	Richard Londergan
Moor	Kilkenny	Pennsylvania	1834	Mike Saunders
Moran	Tubberclare, Westmeath	not given	1850-1950	Tina Mattocks
Moran	Co Waterford?	New York, Ohio	1854	MK Utz
Moran	Castlebar, Co Mayo	New York City NY; Wisner NE	1846-1904	Linda
Moran	Tuam, Co Galway	NYC	1890s	Martin Moran
Moran	Dublin	Lancashire ENG; Fall River MA	1845-90	Ann D'Amore
Moran	Co Kildare, Co Mayo	Canada > Boston MA > TX	1800-60	Joseph C Dorsey
Moran	Castlereagh, Roscommon	not given	1800s	John Moran
Moran	Ballina, Co Mayo	New York City	1898	John Moran
Moran	Tubberclaire, Lissatunia, Athlone	Hartford CT	1890-1960	John
Moran	Drumshanbo, Co Limerick	Brooklyn NY	1866-1950	SD
Moran	Castlebar, Co Mayo	CAN>ENG >KY> OH>IN	1853	Linda Rodgers
Moran	Mayo	UK-ENG, USA-MA	1855-1900	John Kelly
Morgan	Belfast	New Zealand, Victoria AUS	1870-90	Suzanne
Morgan	Rowan, Derrynoose, Armagh	Australia	1857	Kerryn Taylor
Morgan	unknown	Brooklyn NY > Jersey Cty NJ	1870's-present	Lorraine Hanley
Moriarty	Caherciveen	Melbourne, Australia	1850s	Michelle Lawrence
Moriarty	Cahirciveen	Camden, NSW	ca 1850	David Ralph
Moriarty	Cahirciveen, Co Kerry	N.S.W., Australia	ca 1850	Marie Payne
Morooney	Cork?	Islington, London ENG	1880s?	Tim Healy
Morrison	Co Monaghan	Russell Co, Ontario, Canada	1790-1851	Greg Ferguson
Morrison	County Mayo	Canada	not given	Diane
Mor(r)issey	Waterford	Troy, Albany NY	1865-1875	Jeanne Keefe
Morrow	Co Down	Pennsylvania	1774	Vickie L Marsh
Mortel	Limerick	East Pittsburgh PA, USA	1852-1924	Claudia D Sperl
Mathews	Belfast area	immigrated to Cincinnati OH	1848	Stanley Owens
Moxham	Longford	Australia, USA, NZ	1800-50	Sharon
Moxley	Co Cork	Quebec, Ontario, Canada	1828	Julia Scott
Moyles	Co Louth	Genesse Co, NY	1846 onwards	Colleen Wheeler
Moynihan	Gneeveguilla, Co Kerry	Yonkers NY	1884	Andy Moynihan
Moynihan	Castlegregory, Co Kerry	Boston MA	1913-20	Joe Allen
Muckian	Co Monaghan	Newcastle upon Tyne, ENG	ca 1850	Michael L Muckian
Mulderig	Bohola, Co Mayo	St Louis	1880-present	Ellen Naliboff
Mulcahy	unknown	Hoosick Falls NY, N.Adams MA	bef 1855	Jennifer Mulcahy
Mulcahy	Cork	Cambridge MA	1915-20	Kat Donlon
Muldowney	Kilkenny	NYC, NY; California	1900-	Joanne Lattrell
Muldowney	Castlecomer, Co Kilkenny	Schuylkill Co PA	1847	M E Wagner
Mulgannon	Wexford	NYC, NY	1874	Donald F Mulgannon
Mulgrew	Lissan, Co Derry	Durham Co, England	1870	Mary Walsh
Mulhearn	Co Mayo	Perth, SCT	ca 1850	Kathleen
Mulherin	unknown	Pennsylvania, USA	1860-1930	Mary P
Mulholland	Letterkenney, Co Donegal	Saint John, NB, Canada	1834	Pete Mulholland
Mulkeen	Coogue, Aghamore Co Mayo	not given	1790-1930	Michael Duffy
(O) Mullally	Galway region	not given	not given	Thomas Mullally
Mullally	Galway, Kilkenny & Tipperary	Tipperary>Ontario, CAN	ca 1839	Thomas Mullally
Mullally	Klonakeen, Co Tipp & Rathangan, Co Kild	Timaru, NZ	1860	Lesley Kennedy
Mullen	Co Longford	PA, USA	1815-1875	John Warther
Mullen, Mullan	Donegal	Queens Co, NY	1886	Nan
Mullen	Co. Fermanagh	Queensland AU	1834-present	Dianne Kreis
Mullen	County Cavan	Scotland, VT	1864-	John J Bohnert
Mullen, Mullin	unknown	Brooklyn NY	ca 1825	Anna Caulfield
Mulligan	Waterford	Ontario CAN	1830-55	Barclay Mulligan
Mulligan	unknown	Long Island NY	ca 1840-1850	Mary Timmons
Mullin	Longford, Co Longford	PA, USA	1840-46	John Warther
Mullins	Glin, Co Limerick	Perth, Woodslee, Ontario CAN	1832, 1838	C Mullins
Mulready, Mulreedy	Republic of Ireland	ca 1857	1847-99 Troy NY	Gloria R Parker
Mulvehill, Mulvihill	Currow	New South Wales AU	1854	Anne Morrisson
Mulvihill	Co Clare	NYC > Waterville NY	1948	Sharon Mulvihill
Mulvihill	Kilfearagh, Kilkee, Kilrush Co Clare	Emira NY, CT, Oil Cty PA	1872-1921	Anne Green
Munnelly, Monnelly, Munley, Manley	Belmullet area, Co Mayo	unknown	1863	Marianne M Granoff
Munroe	Headford, Co Galway	Wilmington DE	1875	Sheila Swierczewski
Murphy	Co Kilkenny	Australia	ca 1835	Jocelyn Gould
Murphy	Castle Garden, Co Kilkenny	Rhode Island USA & Australia	1850-1864	Claire Latham
Murphy	Glenarm, Co Antrim	unknown, did not emig	1851	David Elliott
Murphy	Co Leitrim	Cincinnati OH	1800	Vicki Probst
Murphy	Co Cork	Upstate NY	not given	Kirsten Murphy
Murphy	Wexford	Horton>Halifax, NS, CAN	1830	S Murphy
Murphy	Cork or Waterford	St John's NFLD	1827	Delina Murphy
Murphy	Kilkenny, Gowran	Australia	1856	Janice Angell
Murphy	Offaly	not given	1855	Tim Murphy
Murphy	Newmarket, Cork	Newmarket, York, NB, CAN	1824-25	Linda Morris
Murphy	Tipperary, Toomyvara	Australia	1852	Lesley
Murphy	Kilkenny	Plainfield NJ	1887	John J Flynn
Murphy	Belfast	Toowoomba Qld, AU	1859	Louise Barry
Murphy	Carric-on-Suir, Co Tipperary	Wales, USA	1910-15	Julie
Murphy	Ballynahow,Dunquin Co Kerry	Quebec, MA, OH, IA ND	1848	Margie M Monihan
Murphy	Gowran, Co Kilkenny	Ontario CAN	1845 or so	Tom Murphy
Murphy	Castledrum, Kilgarrylander, Co Kerry	South Australia	1840	Edna McCouat
Murray	Limerick	Troy NY	1859	Jayne Barber
Murray	unknown	Brooklyn NY	1840-60?	Wendy Hopkins
Murray	North Mayo, Koltmagh etc	NJ, NY, UK	1850s onward	Ciaran Colgan
Murray	Co Down	Pennsylvania	1774	Vickie L Marsh
Murray	East Galway	Brooklyn NY	1860s	Pat Wood
Murtagh	Westmeath	Westchester Co, NY	1895-1960s	Pat Wright
Murtagh	Meath	UK-ENG, USA-MA	1845-1900	John Kelly
Nafin, Naphan	Roscommon	Belleville, Ontario CAN	1842	Janet Bruton
Nagle	Clonakilty	Kane Co, IL	ca 1825	Laura Freeman
Nash, Naish	Callen, Kilkenny	Newfoundland	1765	Petrina Nash
Naughton	Galway	North Braddock, PA, USA	1868-1939	Claudia D Sperl
Naughton	Co Mayo, Sligo	Honesdale, Wayne Co, PA	1800s	Walton J Sullivan
Nawn	Co Fermanagh	Australia	1866	June Shanahan
Neaf, Neafsey	Co Mayo	St Louis MO	1840-60	Marialice O'Hara
Nealon	Limerick & Dublin	Canada	1750-1850	Lisa Jones
Neary	unknown	New York City	1865-70	Jerome J McDermott
Neary, Narey	Shrahanarry, Bangor Erris, Co Mayo	Philadelphia PA	1900	Celeste Koehler
Neeson	Carrickfergus, Co Antrim	England	1997	Edith Neeson
Nehill	unknown	Troy NY	1880-1910	Jeanne Keefe
Nelis	Tyrone	VIC, Australia	1860s on	Bronwyn Firman
Nelligan, Nelagan	unknown	Chicopee MA	1840-50	Ann D'Amore
Neville	Co Cork	Castle Garden, NY	1850-1870	Ginny Pietsch
Nevins	Sligo	not given	1800s	John Moran
Neylon	Limerick, Kerry	Marylebone ENG, Cambria NY	1864-1874	Francis Redding
Neylon, Neylan, Nealon	Cappamore	QLD, Australia	1859	Brendan
Nial, Niall, Nihill, Nehill	Tipperary?	Troy, Rensselaer Co, NY	1840-1860	Kathleen Nial Ross
Nichols	Co Cavan	St John, NB, CAN	1802	Craig Nichols
Nicholason	Co Down	South Australia	1830-57	Peter Nicholson
Nicholson	unknown	Roxbury MA	1850-60	David Nicholson
Nihen, Nighan, Nien, Nehen	Cork	Aberavon, Wales	by 1851	Joe Nihen
Nilan	Kiltarton Par. Co Galway, Crossboyle Par. Co Mayo	not given	1851	Laurie
Noble	Drumreilly Par., Co Leitrim	Grey Co, Ontario	1840	Herbert Noble
Noble	Co Fermanagh	Meriden CT	1850s	Ray
Nolan	not given	not given	1835-1871	Jayne Barber
Nolan	Currow, Co Kerry	Rhode Island	1850?	Herbert Brown
Nolan	Co Leix	not given	not given	Kathryn Kahumoku
Noonan	unknown	Franklin County PA, USA	early 1800s	Denny Seymour
Noonan	Co Cork	not given	from 1856	Marianne Bonner
Noonan	Edgeworthstown, Co. Longford	New York City	1840	Pat Wood
Noone	Mayo	Montreal	1857-1936	Barb Ruppert
Norris	Belfast	England	1820-99	Christine Shelmerdine
Norton	unknown	West Lothian, SCOT	1860s	Bob
Norton	Ballingarry, Co Tipperary	Australia	1840	Julie Holmes
Nowlan	Kilkenny	New Orleans LA	1854	Mike Saunders
Nugent	Scilly, Kinsale	New York NY	1906-1920	Joanne M Coen
Nugent	Cos Meath, Westmeath	New York State	1800-	Ida Maloney
Oakman	Co Antrim	Australia	bef 1840	Vicki Strickland
O'Beglan	Co Longford	San Francisco CA	1849	Leary O'Beglan
O'Brian	Co Wexford	Sydney, Australia	1855-56	Mary
O'Brien	Canvan, Belturbet	Govan, Lamark Scotland, Manhattan NY?	1864	Linda Davitt
O'Brien	Co Cavan	Australia	ca 1860	Jocelyn Gould
O'Brien	Co Tipperary, Waterford or Cork	USA	1844	Debby Massie
O'Brien	Toryhill, Croom, Limerick	Australia	1914	Jacquin Herschel
O'Brien	Carrickbeg	Australia	1883	Robert Armstrong
O'Brien	Cork	Cobh	1920s	Kay
O'Brien	Co Mayo	Philadelphia PA, USA	1850-60	Kate
O'Brien	Viper-Kells, Kilkenny	USA, poss NY	1852-54	Pat Utecht
O'Brien	Co Monaghan	Prince Edward Island	1832	B Harvey
O'Brien	Ballingarry, Limerick	Iowa, USA	1860s	Marie O'Brien
O'Brien	Cork	Boston MA	1848	Florence A Kissane
O'Brien	Tipperary	New Zealand	1870s	Dianne Black
O'Brien	Moynoe, Scariff, Co Clare	N.S.W., Australia	1850	Marie Payne
O'Brien	Clonmel, Co Tipperary	New Zealand	1870-80	Connie Newton
O'Brien	Galway	Australia	1888-1916	Tony
O'Brien	Kilfinane, Co. Limerick	not given	not given	Jim Regan
O'Brien	Co Wexford	Newfoundland	early 1800s	Theresa Cantwell
O'Brien	Garryvoe, Co Cork	Springfield MA	1830s-1900	A F Senecal
O'Brien	Nenagh	Cohoes NY	1867-68	Rita O'Brien
O'Brien	not given	not given	1811-87	Sue
O'Brien	Mayo, Galway, Cork	Manchester UK	1840s, 50s	Gill Rice
O'Brien	Galway	New York	1914	Valerie Colohan Gloin
O'Brien	Dublin	NY, VT, USA	1850	Virginia W Johnson
O'Callaghan	Cork	not given	1870	Myree McGoldrick
O'Callaghan	Coolroemore, Banteer, Co Cork	England	not given	Cornelius O'Callaghan
O'Connell	Ireland	Andover MA	1825-1896	Blaine O'Connell
O'Connell	Limerick	Pennsylvania, Iowa, USA	ca 1850	Michael Lavenz
O'Connell	Kerry?	PA	1860+	Kate
O'Connell	Limerick	New York City NY	ca 1935-45	Mary Timmons
O'Connell	Ireland	Sydney, AUS	< 1850	Sandra Morrison
O'Connell	Carrick Beg, Co Waterford	St John's NL, CAN	1900	Karen Hickey
O'Connell	Tipperary	Philadelphia PA	1880s	Timothy O'Connell
O'Connell	County Cork	London ENG	1854	Ron Ellis
O'Connell	Birchgrove, Co Tipperary	New Zealand	1850s	Elizabeth O'Connell
O'Connell	Renville, Oranmore, Co Glwy	NY? > VT? > Sheboygan WI	1777 onward	Kay R
O'Connor	Co. Waterford	Virgina > New York	VA-1862, NY-1872	Robert Gallagher
O'Connor, Connors	Ennistymon, Co Clare	Victoria AUS	1880+	Andy Schlaikier
O'Connor, Connors	Tipperary	Victoria AU	1800+	Lisa Sukra
O'Connor, Connors	unknown	So Amboy NJ	1860-1920	Arlene Volkay
O'Connor	Cork	Stapleton Lawler, Chickasaw Co, Iowa	1834-1913	Dale H
O'Connor	N. Ireland: Derry, Dungiven	Ontario (Kemptville), Canada	1830-1900	Earlene Hutsell
O'Connor	unknown	PA, USA	1882-1895	Chuck O'Connor
O'Connor	Tralee, Co Kerry	Castle Gardens NY > Independence IA	1835-1913	Jana Wellman
O'Connor	not given	not given	1840, 1860	Bill Gott
O'Connor	Limerick City, Limerick	Ogle Co IL, Polk Co IA	1800-80	Nancy I Baker
O'Connor	unknown	Georgia USA	1864-1933	Dee Bradley
O'Connor	Clasheen, Kilarney	NY, PA	1830-40	Angela Pieper
O'Connor	Dublin	not known	ca 1890+	Amaris Tallis
O'Connor	unknown	Maryland USA	1660-1680	Cindy
O'Connor	Tipperary RC Parish, Co Tipperary	Troy NY	ca 1863	Pat Connors
O'Connor	Ballyscaddan Par, Co Limerick	Troy NY	ca 1863	Pat Connors
O'Connor	Cahirciveen, Co. Kerry	?> California	1850-1950	Dot O'Connor
O'Connor	Tralee, Co Kerry	Kings Co, Nova Scotia, CAN	1835	Mary Pat Shankle
O'Day, Day	unknown	Jersey City NY	1880s-1900s	Lorraine Hanley
O'Donnell	Co Limierick	Quebec?	unknown	Jodi Rose
O'Donnell	Kilkelly, Louisburgh, Co Mayo	Thompsonville, New Haven CT	1865-1870	John Malley
O'Donnell	unknown	Brooklyn NY	1855-60	Loretta O'Donnell
O'Donnell	Co Mayo	Philadelphia	1860-75?	Brian G O'Donnell
O'Driscoll	Cork	Cork & England	1850 on	Sue Brewer
O'Flaherty	Co Galway or Co Cork	Brisbane, Moreton Bay Colony	1855	Janice Hegarty
O'Grady	Shanagolden, Co Limerick	Melbourne AU	1861-3	Barbara Lughermo
O'Hagan (Egan)	Blackwatertown, Co Armagh	Australia	1842	Jeanette Egan
O'Haghan	County Louth	Hopkinton MA	1835-61	Sally Garcia
O'Halloran	unknown	Australia	1900-1940	Frank Montoliu
O'Hara	Sligo	Govan, Glasgow; Bronx NY; Plainfield NJ	1924	Erin Patrick
O'Hara	Cork	Weymouth MA	1926	Tara C
O'Hara	Northern Ireland	Australia	1850	Bev Cameron
O'Hara	Belfast	Govan, Scotland	1850-1880	Ray
O'Hearn	Co Clare	Chicago	1850?	Robert Brannon
O'Herron,Ahern, etc	unknown	New Jersey	mid 1800s	Lorraine Hanley
O'Hora, O'Hara	Leach, Co. Mayo	Geneva NY	1892	MaryPat Carey
O'Keefe	Castle Garden, Co Kilkenny	Australia	1850-1864	Claire Latham
O'Keefe	Co Clare	PA > Ironton OH	1840-50s	Bill McDonough
O'Keef(f)e	Tounnafulla, Co Limerick	Syracuse NY	after 1836	Toni W McCarthy
O'Keeffe	Duagh, Co Kerry	Jamberoo NSW, AU	1858	Jeanette Egan
O'Laughlin	unknown	Berkshire MA	1850	Anne Marshall
O'Laughlin, O'Loughlin	Kilmaley	St Joachim de Shefford, Quebec CAN	ca 1844	Maryse
O'Leary	Bansha, Co Tipperary	Australia 1840	1802-1898	Marie Riley
O'Leary	unknown	PA	1845+	Kate
Oliver	Carlow	America	1850 on	John Shepperd
O'Maley	Co Mayo	Indiana	1840s	Linda Rodgers
O'Malley	Louisburgh, Co Mayo	Clinton MA, USA	1900	Mary McNally
O'Mara	Limerick City, Limerick	Ogle Co IL, Polk Co IA	1800-80	Nancy I Baker
O'Melia	unknown	NY	1850-1900	Rich Nicholas
O'Neil	Templemichael Parish, Co Longford	Quebec, Canada	1830	Wanda Crawford
O'Neil	Co Wicklow	Canada	1850-1860	Patricia Kirkwood
O'Neil	Tipperary	Australia	1848	Leanne Woods
O'Neil	Lattin Parish, Co Tipperary	NY or Boston	1850s	Daniel O'Neil
O'Neil(l)	Cork	Plain Field, Phillipsburg NY, Aurora IL	1850s	John J Flynn
O'Neill	Banteer	Sydney, Australia	1853-55	Kathlean Thomas
O'Neill	Armagh	New York	1840	Robert O'Neill
O'Neill	Valentia, Co Kerry	Dowlais, Wales > NY, CT	1830-85	James O Condon
O'Neill	Newtown Hunt, Thomastown, Kilkenny	Charleston NC, USA	1830-60	Julie O Perkins
O'Neill	Co Derry	did not emig	n/a	Pat Iurilli
O'Neill	Baltimore, Co Cork	New Zealand	1880	Michael
O'Neill	Newport, Co Tipperary	London UK	not given	Michael Duff
Orchard	Tipperary Town, Co Tipperary	Melbourne AU	1900s	John Orchard
Orr	Moneydarragh, Culdaff, Donegal	NY, MA, Canada	mid 1800s	Cheryl Curole
O'Regan	Cork	Quebec, CAN	1860-65	Reg Volk
O'Reilly	Armagh	ON, Canada	1830s	Juli Jorgensen
O'Reilly	Doon Parish, Co Limerick	New York	1849	Joanne Wright
O'Reilly	poss Co Cork	New York ??	1870-1881	Jennifer Cotier
O'Reil(l)y, Riley	Co Clare	CAN > Negaunee MI	ca 1860s	Shawn Kathleen
Ormond	Cork, Co Cork	NY	1850s	Stan Ettinger
Ormsby	not given	ENG, Can, NY, PA	late 1800s	Walton J Sullivan
O'Rourke	Limerick	East Pittsburgh, PA, USA	1852-1929	Claudia D Sperl
O'Rourke	Co Wexford	Minnesota	1855-65	Bobbi Janes
O'Rourke	unknown	Schuylkill & Luzerne Cos, PA	1850-70	Thomas O'Rourke
O'Rourke	not given	CA	not given	Dena O'Rourke
O'Rourke	County Kildare	Sydney, AU	1773-1828	Mal Pettett
O'Rourke, Rorke	Liscellew, Drumkeerin, Co Leitrim	did not emig	n/a	Ann
Orr	Moneydarragh, Co Donegal	Londonderry	1795-1920	Cheryl Curole
Orr	Northern Ireland	not given	1800s-present	Diane
Orr	Donegal	New Jersey	not given	Coleen
Osborne	Donegal, Glencolumbkille	NY	1950-1	Ellen
Osborne	Donegal	Canada	ca 1816-1819	Betty Ann
O'Shaughnessy	Dublin	New York	1886+	Amaris Tallis
O'Shea, Shea	Kerry	Nova Scotia, P.E.I.	1800s	Nancy Schmitz
O'Shea	Valentia Island	Connecticut	1909	Shirlee
O'Sullivan	Limerick	not given	not given	Michael
O'Sullivan	Limerick, Kerry	New Jersey, MA, USA	1879-1885	Emma Fedie
O'Toole	Dublin	Australia	1820	Patricia
Owen	Monaghan, County Monaghan	Newark, New Jersey	1830-1855	Jack Cipriano
Owens	Dumcrow, Inishmacsaine Parish, Co. Fermanagh	Huron Co, Ontario	1846	Carl Maguire
Owens	Rosscrennagh, Templecame Parish, Co. Fermanagh	Huron Co, Ontario	1846	Carl Maguire