Birth Name: Maura Lynn Tierney
Place of Birth: Boston, Massachusetts, U.S.
Date of Birth: February 3, 1965
Maura Tierney is an American actress. She starred on the television series ER and NewsRadio. She is the daughter of Pat (James) and Joseph M. Tierney, a Democratic politician, who was on the Boston City Council, from 1972 to 1987.
Maura’s paternal grandparents were named William Tierney and Mary A. Costello. Mary A. was from County Leitrim, Ireland.
Source: Obituary of Maura’s father – http://archive.boston.com