Babcock, Frank G. 1891 – 1969. Family Papers, ca. 1850 – 1948. SMHC Manuscript Collection 1356, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Babcock, Frank G. 1891 – 1969. Family Papers, ca. 1850 – 1948. SMHC Manuscript Collection 1356, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/273 Accessed April 16, 2024.