When Mary Teresa O'Brien was born on 12 January 1897, in Boston, Suffolk, Massachusetts, United States, her father, Michael J. O'Brien, was 42 and her mother, Annie M Mahoney, was 33. She died on 19 May 1897, in Boston, Suffolk, Massachusetts, United States, at the age of 0.
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Some characteristic forenames: Irish Brendan, Dermot, Liam, Brigid, Declan, Donovan, John Patrick, Kieran, Colm, Donal, Brennan, Caitlin.
Irish: Anglicized form of Gaelic Ó Briain ‘descendant of Brian’, a personal name probably based on the element bre- ‘hill’, with the transferred sense ‘eminence’, i.e. ‘exalted one’. See also Bryan . In Ireland there has also been some confusion with O'Byrne (see Byrne ).
History: This name is borne in particular by one of the greatest of Irish septs, descendants of Brian Boru, who rose to the high kingship of Ireland in 1002.
Dictionary of American Family Names © Patrick Hanks 2003, 2006.
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