1968Final resultsIncumbent defeated
1968 election for South Dakota Legislative District 30
South Dakota House of Representatives · South Dakota
2 seats: Robert R. Giebink (R), David Billion (R) won.
2 seatsRobert R. GiebinkRepublican · winner
6.5%20,625
David BillionRepublican · winner
6.4%20,359
Tom MillsRepublican · incumbent
6.4%20,323
Eunice M. AndersonRepublican · incumbent
6.2%19,761
William F. ClaytonRepublican · incumbent
6.2%19,727
Charles LaceyRepublican · incumbent
6.2%19,663
G. E. ScribnerRepublican · incumbent
6.1%19,330
Albert RistyRepublican · incumbent
5.8%18,382
Ellen E. BlissRepublican · incumbent
5.6%17,868
William DoughertyDemocrat
5.6%17,830
Jerry MayerDemocrat
5.2%16,499
Knud KnudsenDemocrat
5.1%16,319
Peder K. EckerDemocrat
5.1%16,208
John McCartDemocrat
5.1%16,123
Elwin UnruhDemocrat
4.9%15,475
Walter FlanaganDemocrat
4.7%14,845
Donald SheppardDemocrat
4.6%14,527
Mary VanderlindeDemocrat
4.5%14,310
318,174 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 1968
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The candidates
Robert R. Giebink (R)David Billion (R)Tom Mills (R)Eunice M. Anderson (R)William F. Clayton (R)Charles Lacey (R)G. E. Scribner (R)Albert Risty (R)Ellen E. Bliss (R)William Dougherty (D)Jerry Mayer (D)Knud Knudsen (D)Peder K. Ecker (D)John McCart (D)
Also on the ballot: Elwin Unruh (Democrat), 4.9%; Walter Flanagan (Democrat), 4.7%; Donald Sheppard (Democrat), 4.6%; Mary Vanderlinde (Democrat), 4.5%