| Name | Sex | Birth Date | Birth Place |
| O′Brien, Charles | M | 23 September 1869 | Castlereagh, Co. Down, Ireland, United Kingdom |
| O'Brien, Abigail | F | 5d 10mo 1788 | Carlow, Co. Carlow, Ireland |
| O'Brien, Alan David | M | Withheld | Sutton Coldfield, Warwickshire, England, United Kingdom |
| O'Brien, Alison | F | ||
| O'Brien, Angus | M | ||
| O'Brien, Anna | F | 20d 6mo 1817 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, Anna | F | 19d 7mo 1853 | Belfast, Ireland, United Kingdom |
| O'Brien, Anne | F | 22d 5mo 1778 | Carlow, Co. Carlow, Ireland |
| O'Brien, Anson John | M | 28d 6mo 1832 | Collins, Erie County, New York, United States of America |
| O'Brien, Benjamin Rory | M | Withheld | Westmorland, England, United Kingdom |
| O'Brien, Benjamin Thompson | M | 19d 8mo 1856 | Glenmore Cottage, Co. Antrim, Ireland, United Kingdom |
| O'Brien, Brian | M | ||
| O'Brien, Brian | M | 4 July 1898 | Catherine Street, Liverpool, Lancashire, England, United Kingdom |
| O'Brien, Brian George | M | Before 1897 | |
| O'Brien, Clara | F | ||
| O'Brien, Clare Elizabeth | F | Withheld | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Clare-Marie | F | ||
| O'Brien, Daniel | M | 1738 | |
| O'Brien, Daniel | M | 23d 5mo 1786 | Carlow, Co. Carlow, Ireland |
| O'Brien, Daniel | M | 9d 5mo 1830 | Collins, Erie County, New York, United States of America |
| O'Brien, David Hunter | M | Withheld | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Denis | M | Withheld | Salford, Lancashire, England, United Kingdom |
| O'Brien, Dennis | M | ||
| O'Brien, Dermot John | M | ||
| O'Brien, Dianne | F | Withheld | Manchester, Lancashire, England, United Kingdom |
| O'Brien, Doreen | F | 2 November 1900 | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Edith Florence | F | 31 May 1866 | Holywood, Co. Down, Ireland, United Kingdom |
| O'Brien, Edward | M | 20d 1mo 1865 | Belfast, Ireland, United Kingdom |
| O'Brien, Eileen | F | 1 January 1894 | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Elias Hughes | M | 27d 2mo 1858 | Glengormley, Co. Antrim, Ireland, United Kingdom |
| O'Brien, Elizabeth | F | 27d 3mo 1782 | Carlow, Co. Carlow, Ireland |
| O'Brien, Elizabeth | F | 26d 1mo 1832 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, Elizabeth | F | 2 February 1864 | Holywood, Co. Down, Ireland, United Kingdom |
| O'Brien, Elizabeth Hazel | F | ||
| O'Brien, Ethel Owden | F | 26 June 1889 | Urmston, Lancashire, England, United Kingdom |
| O'Brien, Fenella | F | ||
| O'Brien, Fiona Chator | F | Withheld | Westmorland, England, United Kingdom |
| O'Brien, Frederick | M | 1 November 1873 | Bolton, Lancashire, England, United Kingdom |
| O'Brien, Frederick Lucius | M | 31 July 1896 | Belfast, Co. Antrim, Ireland, United Kingdom |
| O'Brien, George | M | 30d 7mo 1819 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, George | M | 9 December 1860 | Holywood, Co. Down, Ireland, United Kingdom |
| O'Brien, George | M | 10 August 1893 | Lynwood (House), Malone Park, Belfast, Co. Antrim, Ireland, United K |
| O'Brien, George Holme | M | 29 May 1888 | Urmston, Lancashire, England, United Kingdom |
| O'Brien, Hannah | F | 19d 3mo 1784 | Carlow, Co. Carlow, Ireland |
| O'Brien, Henry | M | ||
| O'Brien, Jack | M | ||
| O'Brien, James | M | ||
| O'Brien, Jane | F | ||
| O'Brien, Jane | F | 21d 3mo 1780 | Carlow, Co. Carlow, Ireland |
| O'Brien, Joan Wallace | F | 3 June 1914 | Salford, Lancashire, England, United Kingdom |
| O'Brien, John Greeves | M | 13d 10mo 1814 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, John Greeves | M | About 1824 | Collins, Erie, New York, United States of America |
| O'Brien, John Greeves | M | 28d 11mo 1841 | Co. Armagh, Ireland, United Kingdom |
| O'Brien, John Greeves | M | 13 August 1892 | Urmston, Lancashire, England, United Kingdom |
| O'Brien, John Owden | M | 19d 8mo 1856 | Glenmore Cottage, Co. Antrim, Ireland, United Kingdom |
| O'Brien, Jonathan | M | ||
| O'Brien, Jonathan | M | ||
| O'Brien, Joseph Fisher | M | 11 September 1843 | Wirral, Cheshire, England, United Kingdom |
| O'Brien, Joseph Sinton | M | 12d 8mo 1820 | Taylor's Hollow, Erie County, New York, United States of America |
| O'Brien, Joshua | M | 4d 4mo 1775 | Carlow, Co. Carlow, Ireland |
| O'Brien, Joshua | M | 12d 7mo 1776 | Carlow, Co. Carlow, Ireland |
| O'Brien, Joshua | M | 7d 1mo 1858 | Belfast, Ireland, United Kingdom |
| O'Brien, Julia Lockhart | F | Withheld | Westmorland, England, United Kingdom |
| O'Brien, Karen Mary | F | ||
| O'Brien, Kate | F | ||
| O'Brien, Kathleen | F | 18 December 1891 | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Kathleen M. | F | 6 August 1901 | Catherine Street, Liverpool, Lancashire, England, United Kingdom |
| O'Brien, Louis Frederick | M | 20d 3mo 1855 | Belfast, Ireland, United Kingdom |
| O'Brien, Lucretia Allmont | F | 21d 10mo 1836 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, Lucy | F | ||
| O'Brien, Margaret | F | ||
| O'Brien, Margaret | F | 13d 6mo 1821 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, Margaretta Jane | F | 12d 8mo 1826 | Collins, Erie County, New York, United States of America |
| O'Brien, Maria Wright | F | 4d 12mo 1818 | Germantown, Philadelphia, Pennsylvania, United States of America |
| O'Brien, Mary | F | ||
| O'Brien, Mary | F | 1772 | Carlow, Co. Carlow, Ireland |
| O'Brien, Mary | F | 11d 1mo 1852 | Belfast, Ireland, United Kingdom |
| O'Brien, Mary | F | About 1856 | |
| O'Brien, Mary | F | 16 June 1865 | Holywood, Co. Down, Ireland, United Kingdom |
| O'Brien, Mary Jane | F | 12d 8mo 1823 | Carlow, Co. Carlow, Ireland, United Kingdom |
| O'Brien, Mary Jane | F | 21d 2mo 1852 | North Birkenhead, Cheshire, England, United Kingdom |
| O'Brien, Merril | F | ||
| O'Brien, Michael Edward | M | Withheld | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Muriel Holland | F | 9d 12mo 1890 | Liverpool, Lancashire, England, United Kingdom |
| O'Brien, Nora Patricia | F | About Mar 1922 | Chorlton, Lancashire, England, United Kingdom |
| O'Brien, Owen Walter | M | 6 August 1894 | Brisbane, Queensland, Australia |
| O'Brien, Peter | M | ||
| O'Brien, Reginald Charles Thompson | M | 15d 5mo 1893 | Liverpool, Lancashire, England, United Kingdom |
| O'Brien, Richard | M | ||
| O'Brien, Richard | M | 1769 | Carlow, Co. Carlow, Ireland |
| O'Brien, Robert | M | ||
| O'Brien, Robert | M | Withheld | Sutton Coldfield, Warwickshire, England, United Kingdom |
| O'Brien, Roger | M | ||
| O'Brien, Roger Warren | M | Withheld | West Derby, Lancashire, England, United Kingdom |
| O'Brien, Roy | M | ||
| O'Brien, Ruth | F | ||
| O'Brien, Shirley Janet | F | ||
| O'Brien, Stephen | M | ||
| O'Brien, Stephen | M | Withheld | Heywood, Lancashire, England, United Kingdom |
| O'Brien, Stephen Rothwell | M | ||
| O'Brien, Susan | F | ||
| O'Brien, Susanna | F | 16 August 1847 | North Birkenhead, Cheshire, England, United Kingdom |
| O'Brien, Susanna Greeves | F | 5 May 1862 | |
| O'Brien, Sylvie Colette | F | ||
| O'Brien, Terence Herriott | M | 6 August 1897 | Kendal, Westmorland, England, United Kingdom |
| O'Brien, Thomas | M | 9d 4mo 1828 | Carlow City, Co. Carlow, Ireland, United Kingdom |
| O'Brien, Thomas | M | 5 November 1859 | Co. Down, Ireland, United Kingdom |
| O'Brien, Thomas Edwin Hughes | M | About May 1895 | Torquay, Devon, England, United Kingdom |
| O'Brien, Thomas Emlyn | M | 7d 5mo 1822 | Collins, Erie County, New York, United States of America |
| O'Brien, Thomas Henry | M | 30 August 1868 | High Street, Holywood, Co. Down, Ireland, United Kingdom |
| O'Brien, Timothy Ballantyne | M | Withheld | Westmorland, England, United Kingdom |
| O'Brien, William | M | 26d 12mo 1790 | Carlow, Co. Carlow, Ireland |
| O'Brien, William Daniel | M | 1d 5mo 1850 | Belfast, Ireland, United Kingdom |
| O'Brien, William Greeves | M | 15d 4mo 1839 | Collins, Erie County, New York, United States of America |
| O'Brien, Winifred | F | 29 March 1906 | 87 Douglas Road, Horfield, Bristol, Gloucestershire, England, United |
| O'Gara, Alison | F | Withheld | |
| O'Gara, Colleen | F | Withheld | |
| O'Gara, J | M | ||
| O'Gara, Kelly | F | Withheld | |
| O'Gara, Rachel Elizabeth | F | Withheld | |
| O'Halloran, Sarah Jane | F | ||
| O'Halloran | M | ||
| O'Loughlin, Moyra | F | ||
| O'Malley, Taidgh | M | ||
| O'Neill, Georgina Elizabeth | F | 12 June 1896 | Ballyloughan (Townland), Castlereagh, Belfast, Co. Down, Ireland, Un |
| O'Neill, Henry | M | About 1854 | Crossnacreevy (Townland), Castlereagh, Belfast, Co. Down, Ireland, U |
| O'Neill, Henry Theodore | M | 9 October 1888 | 6 College Square East, Belfast, Co. Antrim, Ireland, United Kingdom |
| O'Neill, Thomas Malcomson | M | 12 June 1896 | Ballyloughan (Townland), Castlereagh, Belfast, Co. Down, Ireland, Un |
| Oakman, Olive | F | 23d 7mo 1924 | |
| Oakman, William Robert | M | 9 November 1865 | Pigeontown, Ballyvoland (Townland), Crumlin, Co. Antrim, Ireland, Un |
| Ogden, Anthea G. | F | Withheld | Lunesdale, Lancashire, England, United Kingdom |
| Olby, Angela Beryl | F | ||
| Olden, Isobel Olga | F | ||
| Oldfield, Diane | F | Withheld | Gloucester City, Gloucestershire, England, United Kingdom |
| Oliver, Harold Earl | M | ||
| Oliver, Harold Earl | M | 23 December 1915 | Pottsville, Schuylkill County, Pennsylvania, United States of Americ |
| Oliver, Helen Sabold | M | 4 December 1919 | Pottsville, Schuylkill County, Pennsylvania, United States of Americ |
| Oliver, Herbert H. | M | ||
| Oliver, Martin | M | ||
| Oliver, Naomi Emma | F | 1917 | Pottsville, Schuylkill County, Pennsylvania, United States of Americ |
| Oliver, Ralph John | M | 30 December 1921 | Pottsville, Schuylkill County, Pennsylvania, United States of Americ |
| Oliver, Ralph Walter | M | 16 May 1895 | Frackville, Schuylkill County, Pennsylvania, United States of Americ |
| Oliver, Tanya | F | ||
| Orr, Craig Alexander | M | ||
| Osburn, John | M | ||
| Osburn, Nicholas | M | Withheld | England, United Kingdom |
| Osburn, William | M | Withheld | Canada |
| Ossett, Lou | M | ||
| Otis, Annie Fay | F | 20 May 1892 | Colorado Springs, El Paso County, Colorado, United States of America |
| Otis, Arthur Sinton | M | 28 July 1886 | Denver City, Denver County, Colorado, United States of America |
| Otis, Edith Sinton | F | 25 September 1889 | Colorado Springs, El Paso County, Colorado, United States of America |
| Otis, George Franklyn | M | 7 May 1852 | Boston, Middlesex County, Massachusetts, United States of America |
| Otis, Margaret Sinton | F | 30 November 1893 | Pasadena, Los Angeles County, California, United States of America |
| Otis, Marlene | F | ||
| Owden, John | M | 24d 4mo 1799 | Ireland |
| Owden, Margaret | F | 19d 2mo 1842 | Brooklands (House), Lower Malone, Belfast, Co. Antrim, Ireland, Unit |
| Owens, Debra Diane | F | ||
| Owens, Julian Cary | M | ||
| Owens, Julie Carol | F | ||
| 159 results from 5363 Records | |||
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