Havemeier, William, 1894 - 1976. Papers, 1934 – 1962. SMHC Manuscript Collection 1228, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Havemeier, William, 1894 - 1976. Papers, 1934 – 1962. SMHC Manuscript Collection 1228, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/559 Accessed February 05, 2025.