1980Final results
1980 election for Missouri House District 138
Missouri House of Representatives · Missouri
Roy Cagle (R) won with 66.2% of the vote, defeating Mary Manard (D) by 32.4 points.
Roy CagleRepublican · winner · incumbent
66.2%8,066
Mary ManardDemocrat
33.8%4,118
12,184 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 1980
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET