Christensen, Thomas H., 1937-. Oral History Interview, 9 and 12 February 1987. SMHC Manuscript Collection 1467, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Christensen, Thomas H., 1937-. Oral History Interview, 9 and 12 February 1987. SMHC Manuscript Collection 1467, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/214 Accessed January 30, 2025.