Janning, Yvonne, 1940-. Oral History Interview, 15 and 19 February 1991. SMHC Manuscript Collection 1424, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/566 Accessed January 19, 2022.
University Archives and Southern Minnesota Historical Center
Minnesota State University, Mankato
P.O. Box 8419
Mankato, MN 56002-8419