1968Final resultsIncumbent defeated
1968 election for Oklahoma House District 31
Oklahoma House of Representatives · Oklahoma
Donald Coffin (D) won with 53.9% of the vote, defeating Ruth M. Patterson (R) by 7.9 points.
Donald CoffinDemocrat · winner
53.9%5,467
Ruth M. PattersonRepublican · incumbent
46.1%4,671
10,138 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