(center) and several Boston City Council members (ca.1984–1987) From 1982 through 2005, Hennigan was a member of the Boston City Council. She was first elected in November 1981, the final election when all seats were
at-large. She was subsequently re-elected to nine two-year terms as the representative for District 6 (
Jamaica Plain and
West Roxbury). In November 2001, she successfully ran for an at-large position, and was re-elected in November 2003. She was the first woman to chair Boston's Ways and Means Committee. In 1997, she lost the
party primary for the
Democratic Party nomination in the
special election for the
Massachusetts Senate seat in the Suffolk and Norfolk District -placing third behind
Brian A. Joyce and
Maureen Feeney. In both 1984 and 1996, she was elected to the
Massachusetts Democratic Party State Committee. She unsuccessfully ran for
Mayor of Boston in
November 2005, being defeated by incumbent
Thomas Menino (who garnered 67% of the vote). In 2006, Hennigan was elected clerk of the Criminal/Business Court of Suffolk County, defeating assistant clerk of court Robert Dello-Russo. She became the ninth elected official to hold this position, as well as the first female official. ==Personal life==