Heimark, John, 1922-2016. Oral History Interview and Collection, February 20, 2004. SMHC Manuscript Collection 1720, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Heimark, John, 1922-2016. Oral History Interview and Collection, February 20, 2004. SMHC Manuscript Collection 1720, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/325 Accessed April 19, 2024.