Poster Papers. "The Correspondence of the Bird Man John Gould (1804-1881)", Dr. Gordon Sauer, with the assistance of Ann Datta, Natural History Museum, London, 1994, Box: 43, Folder: 46-57. 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/206084 Accessed June 02, 2024.