Family History and Genealogy Resources by Surname
O'Leary Surname Origin
The descendant of Lary; Llary, Welsh, gentle, easy.
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
O'Leary Surname Meaning and Family Facts
O'Leary Last Name Meaning
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A O'Leary Family History Thought:
'We relish news of our heroes, forgetting that we are extraordinary to somebody, too.' --Helen Hayes