Kenneth Spencer Research Library, University of Kansas. Gould pamphlets. Gordon C. Sauer ["John Gould the Bird Man: A Chronology and Bibliography" by Gordon C. Sauer], Box: 13, Folder: 11. 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/205761 Accessed January 16, 2025.