1972Final resultsIncumbent defeated
1972 election for Iowa House District 55
Iowa House of Representatives · Iowa
William R. Ferguson (R) won with 50.4% of the vote, defeating Charles E. Knoblauch Sr. (D) by 0.7 points.
William R. FergusonRepublican · winner
50.4%5,445
Charles E. Knoblauch Sr.Democrat · incumbent
49.6%5,369
10,814 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