Letter from Gould, John to H. Bendelack Hewetson, 1879-08-12, Box: 61, Folder: 29. 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/206252 Accessed November 24, 2024.