Information on race accessed and verified via:
http://images.library.wisc.edu/WI/EFacs/WIBlueBks/BlueBks/WIBlueBk1956/reference/wi.wibluebk1956.i0018.pdf
http://www.ourcampaigns.com/RaceDetail.html?RaceID=171656
Includes write-in votes not included in the county-level data.
Source for Popular Vote data: Wisconsin Legislative Reference Library. The Wisconsin Blue Book, 1956, Wisconsin Legislative Reference Library (http://images.library.wisc.edu/WI/EFacs/WIBlueBks/BlueBks/WIBlueBk1956/reference/wi.wibluebk1956.i0018.pdf) (accessed 24 Aug 2012)