Senator Thye was reelected to a second term.
Carlson was a resident of St. Paul and sitting state Representative (HD 41, 1947-1953).
LeSueur was a resident of Minneapolis, state executive director of the Progressive Party of Minnesota, state board of education member (1935), state planning board member (1935-1937), and Chairwoman of the DFL Party (1944-1948). LeSueur was nominated by petition.
Dunne was a resident of Minneapolis, Farmer-Labor candidate for the 5th CD in 1928, Workers Communist nominee for U.S. Senate in 1928, Socialist nominee for Secretary of State in 1936, and the Socialist Workers nominee for U.S. Senate in 1948 and 1954. Dunne was nominated by petition.