1972Final results
1972 election for Oregon House District 20
Oregon House of Representatives · Oregon
Mary Roberts (D) won with 72.9% of the vote, defeating Jack Reasoner Quinby (R) by 45.7 points.
Mary RobertsDemocrat · winner
72.9%8,781
Jack Reasoner QuinbyRepublican
27.1%3,270
12,053 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