Stott Explorers Library, Martin Osa Johnson, Safari Museum [newsletters], 1999 - 2000, Box: 105, 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/205545 Accessed November 28, 2024.