Higgs, Roger Lee, 1938-. Oral History Interview, 29 October and 24 November 1989. SMHC Manuscript Collection 1396, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Higgs, Roger Lee, 1938-. Oral History Interview, 29 October and 24 November 1989. SMHC Manuscript Collection 1396, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/456 Accessed April 25, 2024.