^"Montana Voter Turnout". Montana Secretary of State. Retrieved May 26, 2022.
^ a b"Report of the Official Canvass of the Vote Cast at the Primary Election Held in the State of Montana, July 16, 1940" (PDF). Montana Secretary of State. Archived from the original (PDF) on December 28, 2013. Retrieved July 5, 2014.
^"Official Montana General Election Returns, November 5, 1940" (PDF). Montana Secretary of State. Archived from the original (PDF) on May 28, 2013. Retrieved July 6, 2014.