Wortman, Allen L., 1935-. Oral History Interview and Collection, 2017. SMHC Manuscript Collection 261, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.
Wortman, Allen L., 1935-. Oral History Interview and Collection, 2017. SMHC Manuscript Collection 261, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/113 Accessed November 24, 2024.