William R. Thompson (born May 14, 1949) is an American politician from South Dakota. A member of the Democratic Party, he served in the South Dakota House of Representatives from 2003 to 2010. External links South Dakota Legislature - Bill Thompson official SD House website Project Vote Smart - Representative William R. 'Bill' Thompson (SD) profile Follow the Money - Bill Thompson 2008 2006 2004 2002 2000 campaign contributions Democratic Party members of the South Dakota House of Representatives 1949 births Living people Politicians from Aberdeen, South Dakota Politicians from Sioux Falls, South Dakota