Sauer Notes - The Schoch Letter [newsletter], 1983-06 - 1987-12, Box: 104, Folder: 33-47. 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/205535 Accessed July 26, 2024.