1970Final results
1970 Democratic primary for Missouri House District 156
Missouri House of Representatives · Missouri
Marvin Proffer (D) won with 52.1% of the vote, defeating Tom Oloughlin (D) by 4.3 points.
Marvin ProfferDemocrat · winner · incumbent
52.1%2,021
Tom OloughlinDemocrat
47.9%1,856
3,877 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET