Special election on November 3, 1942 for the unexpired term ending January 3, 1943 to fill the vacancy caused by the death of Farmer-Laborite Ernest Lundeen on August 31, 1940. The vacancy had been filled until the special election by the appointment of Republican Joseph H. Ball on October 14, 1940.
Nelson was an attorney from St. Paul, former Mayor of St. Paul (1922-1926), and Republican nominee for U.S. Senator in 1928.
Hansen was a resident of Minneapolis.
O'Rourke was a resident of Maple Lake.