"John Gould: His Birds and Beasts," Kenneth Spencer Research Library, the University of Kansas [exhibit], 1981, Box: 21, Folder: 51. 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/204759 Accessed December 01, 2024.