1974Flipped from RepublicanFinal results
1974 election for Missouri House District 31
Missouri House of Representatives · Missouri
Della Hadley (D) won with 51.2% of the vote, defeating Donald E. Winslow (R) by 2.5 points, a seat Republicans won last time.
Della HadleyDemocrat · winner
51.2%5,087
Donald E. WinslowRepublican
48.8%4,841
9,928 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 1974
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET