[Family] Sauer, Gweneth [letters], 1983 - 1987, Box: 100, Folder: 15-19. 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/205437 Accessed November 28, 2024.