1968Final resultsSpecial election
1968 special election for Massachusetts House District 103
Massachusetts House of Representatives · Massachusetts
Gilbert W. Cox Jr. (R) won with 51.9% of the vote, defeating Michael A. Heffernan (D) by 3.8 points.
Gilbert W. Cox Jr.Republican · winner
51.9%3,426
Michael A. HeffernanDemocrat
48.1%3,172
6,598 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 1968
Races before and after
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)