1968Final results
1968 election for Pennsylvania Senate District 21
Pennsylvania State Senate · Pennsylvania
Donald O. Oesterling (D) won with 57.5% of the vote, defeating Robert L. Gardner (R) by 15.0 points.
Donald O. OesterlingDemocrat · winner · incumbent
57.5%49,746
Robert L. GardnerRepublican
42.5%36,775
86,521 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: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET