Christie's, London. Catalog of the Godman Collection of Watercolours for John Gould's "The Birds of Australia", 1995, Box: 68, Folder: 5. 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/204959 Accessed September 07, 2024.