Booklets: How to Keep Your Money and How to Pay Your Debts by George S. Clason, 1930, 1934, Box: 2, Folder: 59. Voth, Unruh, and Banman families collection, RH MS 1455. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/373608 Accessed September 13, 2024.