1970Final results
1970 election for Massachusetts Senate District D13
Massachusetts State Senate · Massachusetts
David H. Locke (R) won with 61.8% of the vote, defeating Arthur M. Tiernan Jr. (D) by 23.6 points.
David H. LockeRepublican · winner · incumbent
61.8%30,050
Arthur M. Tiernan Jr.Democrat
38.2%18,555
48,605 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 1970
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET