Linda Hall Library [University of Missouri, Kansas City. Kansas City, MO], [John] Gould, Box: 13, Folder: 36-41. 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/205771 Accessed February 26, 2025.