1978Final resultsIncumbent defeated
1978 election for South Dakota Legislative District 15
South Dakota House of Representatives · South Dakota
2 seats: Francis R. Thieman (R), Frank J. Brady (D) won.
2 seatsFrancis R. ThiemanRepublican · winner
29.0%3,825
Frank J. BradyDemocrat · winner
24.5%3,233
Jerome RadackDemocrat · incumbent
24.0%3,163
Marian B. GundersonRepublican
22.5%2,961
13,182 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET