1974Flipped from RepublicanFinal resultsIncumbent defeated
1974 election for Massachusetts Senate District D13
Massachusetts State Senate · Massachusetts
Jack H. Backman (D) won with 27.9% of the vote, defeating Edward L. Burke (D) by 1.4 points, a seat Republicans won last time.
Jack H. BackmanDemocrat · winner · incumbent
27.9%37,102
Edward L. BurkeDemocrat · incumbent
26.5%35,260
David H. LockeRepublican · incumbent
22.7%30,215
Francis MorseDemocrat
13.7%18,148
Joseph I. WeinrebeRepublican
9.2%12,177
132,902 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 1974
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET