1968Final results
1968 Democratic primary for Missouri House District 57
Missouri House of Representatives · Missouri
Frank E. Kostron (D) won with 64.1% of the vote, defeating John Ziebol (D) by 28.2 points.
Frank E. KostronDemocrat · winner · incumbent
64.1%1,413
John ZiebolDemocrat
35.9%791
2,204 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET