Bob Jensen, Harry Craig, Larry Woodman, Wally Wallis, Diana Fell, Ken Schmidt, Don Amspacker, Kay Craig, Gordon Worthing, Ray Bramlage, Janet Martin McKinney, Box: 2, Folder: 41. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154272 Accessed January 03, 2025.