Bubb Materials (must be returned), 1936, 1938, 1940, 1950 & 1961-1989, Box: 2, Folder: 10-13. Henry Agnew Bubb papers, RH MS 159. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/71874 Accessed July 20, 2025.