1990Final results
1990 election for Massachusetts House District 84
Massachusetts House of Representatives · Massachusetts
Mary Jane Gibson (D) won with 53.1% of the vote, defeating William P. Monahan (R) by 6.3 points.
Mary Jane GibsonDemocrat · winner · incumbent
53.1%9,551
William P. MonahanRepublican
46.9%8,419
17,970 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET