"John Gould the Bird Man: Correspondence, 1804 through 1841", edited and compiled by Gordon C. Sauer, with the assistance of Ann Datta, early, Box: 45, Folder: 45-46. 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/206126 Accessed July 26, 2024.