Olson, Carl G., 1904 - 1965. Papers, 1955 – 1957. SMHC Manuscript Collection 1212, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Olson, Carl G., 1904 - 1965. Papers, 1955 – 1957. SMHC Manuscript Collection 1212, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/431 Accessed November 24, 2024.