MKT Sta. ATSF 1st Gen. Diesels: Missouri Kansas Texas Henrietta, Tex. – Pottsboro, Tex, Box: 21, Box: 65. Howard Killam Collection, RH MS 1381. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/226930 Accessed May 27, 2024.