Wallis Ferdinand (1997), Janie Stock, Fred Colby (2000), Beth Anne Branden, Stacey Utech, Teri Wolfe (2000), Ed Seichepin (?), Craig Bouches, Phil Beurskens, Chris Pickering, Russ Branden, Joe Ruhl (1997), Ed McCartney, Box: 2, Folder: 72. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154303 Accessed June 17, 2025.