Baughman, J.L. [includes handwritten notes by Baughman about Gould's works], Box: 17, Folder: 57-61. 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/204623 Accessed June 02, 2024.