Family letters - GCS [Gordon C. Sauer], MLS [Mary Louise Sauer], Grandmother Chenoweth, children, Box: 100, Folder: 12-13. Sauer's Gouldiana Research about John Gould and other papers, MS 304. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/205435 Accessed July 26, 2024.