Wortman, Dr. Allen (Al) 1935-. Collection, 1969-1995. SMHC Manuscript Collection 232, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.
Wortman, Dr. Allen (Al) 1935-. Collection, 1969-1995. SMHC Manuscript Collection 232, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/430 Accessed September 18, 2024.