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Brennan Family History

Brennan Genealogy & Family Tree

Brennan is an Irish name from County Kilkenny, Ireland. It comes from the Gaelic word braon which means "sorrow." The earliest known ancestor--Mac Branain--was recorded in 1159.

Other spellings include "McBrennan," "Brannon," "Brannan," "Brannen," "Brannin," "Brennyn," "Brannyn," "Brenan," "Branon," "Branan," and "Branen." Notable people with the surname include American baseball player (Cleveland Indians, Chicago White Sox, Los Angeles Dodgers), American baseball player William Brennan (Los Angeles Dodgers, Chicago Cubs), and American actor Walter Brennan (The Real McCoys, Rio Bravo, To Have and Have Not). The first Brennan to come to America was James Brennan in Maryland in 1731.

Brennan Birth Records
  • Name Birth Date Death Date Location
  • Richard Brennan -- --, 1848 July 21, 1902
  • Edwin Brennan -- --, 1842  
  • Anna Brennan -- --, 1884 December 0, 1966 New York
  • Patrick Brennan   March 31, 1863
  • James Brennan -- --, 1820  
Brennan Death Records
  • Name Birth Date Death Date Location
  • Milton Brennan -- --, 12 January 25, 2004 Massachusetts
  • Margaret K Brennan -- --, 1867 December 0, 1966 Victoria
  • Mary J. Brennan -- --, 1869 December 30, 1953 Iowa
  • James Michael Brennan -- --, 1945 March 30, 2006 New York
  • William Brennan -- --, 1859 December 0, 1938 Ontario
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