1972Final results
1972 election for Illinois Representative District 1
Illinois House of Representatives · Illinois
3 seats: Brian B. Duff (R), John Porter (R), Harold A. Katz (D) won.
3 seatsBrian B. DuffRepublican · winner · incumbent
37.7%104,687
John PorterRepublican · winner
27.9%77,520
Harold A. KatzDemocrat · winner · incumbent
26.1%72,703
Donald L. NormanDemocrat
8.3%23,122
278,033 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