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O'brien Family History

O'brien Genealogy & Family Tree

O'brien is ranked as the 281st most common name in the United States. The number of people who have that last name is 97,500.

O'brien View the O'brien family tree
O'brien Birth Records
  • Name Birth Date Death Date Location
  • Margaret O'Brien -- --, 1567 November 27, 1626
  • Donogh O'Brien -- --, 1550 September 5, 1624 County Cork
  • Teige O'Brien -- --, 1471 December 0, 1523
  • Margery O'Brien -- --, 1478 December 0, 1558
  • Lafracoth O'Brien -- --, 1076 December 0, 1135
O'brien Death Records
  • Name Birth Date Death Date Location
  • Judith Anne O'Brien -- --, 1564 December 0, 1593
  • Patrick O'Brien -- --, 1876 March 27, 1939 Westport
  • Muirchertach MacToirrdelbaig O'Brien -- --, 1132 December 0, 1168
  • Lafracoth Ingel Muiredaig O'Brien -- --, 1076 December 0, 1135
  • Toirrdelbach Mor O'Brien -- --, 1009 July 14, 1086
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