"John Gould the Bird Man: Associates and Subscribers" by Gordon C. Sauer, draft, 1995-11, Box: 30, Folder: 13-18. 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/205951 Accessed November 28, 2024.