Brock, Marcius R. Oral History Interview and Collection, 2010. SMHC Manuscript Collection 1779, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Brock, Marcius R. Oral History Interview and Collection, 2010. SMHC Manuscript Collection 1779, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/453 Accessed April 26, 2024.