John Gould chronology, copy 3, uncorrected, compiled by Gordon C. Sauer, Box: 34, Folder: 7-9. 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/205979 Accessed March 13, 2025.