1972Final results
1972 election for Missouri Senate District 31
Missouri State Senate · Missouri
William J. Cason (D) won with 60.0% of the vote, defeating Vernon Wille (R) by 20.1 points.
William J. CasonDemocrat · winner · incumbent
60.0%30,913
Vernon WilleRepublican
40.0%20,566
51,479 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 1972
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET