O'Leary Genealogy & History
O'Leary had its family seat in Cork County from ancient times. O'Leary, which evolved from O Laoghaire, one of the most common names in old Ireland, is a compound of laogh and aire, or calf and keeper or tender of calves. O'Leary family history has Mahon O'Leary in 1601 as the first recording of the name. The family motto is strong is the king of the sea. Noteworthy O'Leary genealogy members are lacrosse coach Amanda O'Leary, journalist and editor of the Times Higher Education Supplement John O'Leary, and gay and lesbian rights activist and politician Jean O'Leary.
O'Leary Birth Records
| Name | Birth Date | Death Date | Location |
| Alexander O'leary | -- --, 1899 | December 24,1997 | CA |
| Bennie O'leary | -- --, 1912 | November 16,1999 | WY |
| Carole O'leary | -- --, 1946 | November 6,2006 | IA |
| Dale O'leary | -- --, 1955 | December 5,2000 | IL |
O'Leary Death Records
| Name | Birth Date | Death Date | Location |
| Edith O'leary | -- --, 1929 | August 6,2004 | Colorado Springs,CO |
| Francis O'leary | -- --, 1933 | December 21,1996 | West Hills,CA |
| Grace O'leary | -- --, 1937 | October 30,2005 | Old Bridge,NJ |
| Hilda O'leary | -- --, 1902 | August 14,1997 | Salt Lake City,UT |
O'Leary Marriage Records
| Name | Spouse | Marriage Date | Location |
| Orvel O'Leary | Adeline Mooney | January 4,1932 | Clark, WA |
| Nancy O'leary | John Lawson | December 20,2004 | Clark, NV |
| Harold O'leary | Hazel Farset | July 29,1974 | Reno, NV |
| William O'leary | Carrie Holm | December 18,2004 | MIAMI, OH |
Most Common Surnames After O'Leary
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