Before the Interstate Commerce Commission, Simonds, Shields, Lonsdale vs. A, T, and SF RR, September 19, 1936, Box: 21, Folder: 33. Frank A. Theis papers, RH MS 948. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/60797 Accessed July 19, 2025.