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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
  • Patrick O'Brien -- --, 1851 September 11, 1917
  • John J. O'Brien -- --, 1855 December 0, 1903 Massachusetts
  • John James O'Brien -- --, 1689 December 0, 1740 Ulster
  • Muirchertach MacToirrdelbaig O'Brien -- --, 1132 December 0, 1168
  • Lafracoth Ingel Muiredaig O'Brien -- --, 1076 December 0, 1135
O'brien Death Records
  • Name Birth Date Death Date Location
  • Toirrdelbach Mor O'Brien -- --, 1009 July 14, 1086
  • Teige O'Brien -- --, 990 December 0, 1023
  • Patrick O'Brien -- --, 1876 March 27, 1939 Westport
  • Lafracoth O'Brien -- --, 1076 December 0, 1135
  • Judith Anne O'Brien -- --, 1564 December 0, 1593
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