1978Final results
1978 election for Massachusetts House District 84
Massachusetts House of Representatives · Massachusetts
Mary Jane Gibson (D) won with 53.6% of the vote, defeating G. Richard Macdonald (R) by 25.6 points.
Mary Jane GibsonDemocrat · winner
53.6%9,190
G. Richard MacdonaldRepublican
28.0%4,797
Mark OconnorIndependent
18.4%3,156
17,148 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET