Information on third-party candidates accessed via:
http://www.ourcampaigns.com/RaceDetail.html?RaceID=200141
The following candidates are listed on these party lines on http://www.ourcampaigns.com/RaceDetail.html?RaceID=200141:
Cozzini- Socialist Labor;
Hunt- Socialist Workers;
Kastner- Independent Progressive
Source for Popular Vote data: Wisconsin Legislative Reference Bureau. The State of Wisconsin Blue Book 1971, Wisconsin Legislative Reference Bureau (http://images.library.wisc.edu/WI/EFacs/WIBlueBks/BlueBks/WIBlueBk1971/reference/wi.wibluebk1971.i0011.pdf) (accessed 29 Apr 2013)