1972Final resultsIncumbent defeated
1972 election for South Dakota Legislative District 13
South Dakota House of Representatives · South Dakota
2 seats: Mary B. Edelen (R), Michael Curran (D) won.
2 seatsMary B. EdelenRepublican · winner
28.8%4,539
Michael CurranDemocrat · winner
24.3%3,824
Robert T. CollingwoodDemocrat
23.7%3,738
Edwin J. HaddRepublican · incumbent
23.2%3,652
15,753 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