O’Conner Family History and Genealogy or the O’Conner Family. PDF eBook English 1.65 MB. 1914. A fascinating oral tradition regarding the roots of the O’Conner Clan in <"xml:namespace prefix = st1 /><"xml:namespace prefix = st1 />Ireland is presented, which covers the years from 1181 to 1641. Being born in Ireland, about 1756, it is Mathias O’Conner who is the adventurer who crosses the Atlantic to the American shores. Aye, then 5 additional generations are revealed from 1756 to 1914 of O’Conner descendants in America!