Carlson, Walter W., 1902 - 1975. Papers, 1947 - 1974. SMHC Collection 0143, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.
Carlson, Walter W., 1902 - 1975. Papers, 1947 - 1974. SMHC Collection 0143, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/649 Accessed December 22, 2024.