U.S. Railroad Retirement board. 844 Rush Street, Chicago, ILL; 911 Walnut, KC, MO; 104 N. Main, Wichita, KS Room 506, 1970s, Box: 25, Folder: 1. Bryan K. Whitehead papers, RH MS 548. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/62667 Accessed November 23, 2024.