University of Chicago, Mid-America Seminar For Railway Labor, 1307 East 60th Street, Chicago, Illinois, 60637, 1963-1964, Box: 57, Folder: 3. Bryan K. Whitehead papers, RH MS 548. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/62844 Accessed May 19, 2024.