This primary election was for the full six-year term.
Lindquist was a Minneapolis attorney who was appointed to the office by Governor Luther Youngdahl on June 21, 1949 following the death of Commissioner Frank Matson on May 29, 1949.
Weiss was a resident of Minneapolis and GOP candidate for Railroad and Warehouse Commissioner in 1950's special election and in 1952.
Herwig was a resident of Minneapolis, public relations agent for the publication Minnesota State Employee, and candidate for Railroad and Warehouse Commissioner in 1948.
Vandenover was a milling executive from Minneapolis.
Van Auken was a salesman from Robbinsdale, candidate for Railroad and Warehouse Commissioner in 1954 and 1956, candidate for HD 36 in 1960, and candidate for HD 29 in 1962.