Lundeen was an attorney from Minneapolis, former state Representative (HD 42, 1911-1915), former U.S. Representative (CD 05, 1917-1919), and Republican candidate for U.S. Senate in 1922 and 1923. Lundeen ran for the U.S. House multiple times and would later serve two more terms as a Farmer-Laborite (AL, 1933-1935; CD 03, 1935-1937) before getting elected to the U.S. Senate (1937-1940). He was also a candidate for Chief Justice of the Supreme Court in 1924.
Wefald was a resident of Moorhead, former Republican state Representative (HD 60, 1913-1915; HD 49, 1915-1917), former Farmer-Labor U.S. Representative (CD 09, 1923-1927), and Farmer-Labor nominee for Railroad and Warehouse Commissioner in 1932.