Nolan was a resident of Minneapolis, former state Representative (HD 42, 1903-1909; HD 43, 1911-1915; HD 33, 1917-1925), former Lieutenant Governor (1925-1929), and former U.S. Representative (CD 05, 1929-1933).
Rollin Johnson was an attorney from Forest Lake, sitting state Representative (HD 43, 1925-1931, 1935-1943), eventual Railroad and Warehouse Commissioner (1943-1945, 1948-1949), and nominee for Associate Justice of the Supreme Court in 1946.
Lund was a resident of Minneapolis, Alderman from the 10th Ward on the Minneapolis City Council, candidate for the 3rd CD in 1946, and Railroad and Warehouse Commissioner nominee in 1952's special election.
Knutson was a farmer and attorney from Benson, former state Representative (HD 56, 1907-1909, 1911-1913; HD 25, 1915-1919), candidate for an at-large U.S. House seat in 1932, candidate for Lieutenant Governor in 1936, and candidate for Railroad and Warehouse Commissioner in 1928.
Einar Anderson was a resident of Minneapolis and president of the Strite-Anderson Manufacturing company.
Bernard Anderson was a resident of Darwin, former Meeker County Sheriff, former U.S. Marshal, and former U.S. prison investigator.
Ramberg was a labor leader from Duluth and editor of the AFL paper in Duluth.
Olson was a resident of Renville, University of Minnesota regent, former president of the State Farm Bureau, candidate for the 7th CD in 1936, and candidate for Railroad and Warehouse Commissioner in 1940.
Jalmer Johnson was a resident of Minneapolis, former chief grain and weighing inspector for the Railroad and Warehouse Commission for 35 years, candidate for Railroad and Warehouse commissioner in 1938, 1940, and 1944, candidate for the 3rd CD in 1950, and nominee for HD 35 in 1952 and 1954.
Feroe was an attorney from Minneapolis who previously was on staff of the state Attorney General.