Thiesse, Sylvan H., 1921-2015. Oral History Interview, 14 and 19 November 1990. SMHC Manuscript Collection 1438, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.
Thiesse, Sylvan H., 1921-2015. Oral History Interview, 14 and 19 November 1990. SMHC Manuscript Collection 1438, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/604 Accessed December 21, 2024.