Trip - England and Scotland [letters, notebooks, Gould notes, receipts miscellaneous], 1983, Box: 25, Folder: 35-39. 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/204862 Accessed June 17, 2024.