1978Final results
1978 Democratic primary for Oklahoma House District 76
Oklahoma House of Representatives · Oklahoma
Mary Thetford (D) won with 55.6% of the vote, defeating Sherry G. Cumber (D) by 11.3 points.
Mary ThetfordDemocrat · winner
55.6%1,597
Sherry G. CumberDemocrat
44.4%1,274
2,871 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET