Royal Scottish Museum, Edinburgh, William Jardine Papers, part 1. [Compiled by] Joy Pitman, Edinburgh, 1981, Box: 16, Folder: 1. 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/205853 Accessed July 26, 2024.