Doug Sund, Ken Schmidt, Dick Rogenmoser, Phil Beurskens, Lee Blanck, Rogie Rogenmoser, Don Amspacker, Bob Johnson, Janet Martin McKinney, Judy Knoll, Gordon Worthing, Bregette Morris Summer (1994), Richard Johnson, Marvin Placek, Box: 2, Folder: 54. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154285 Accessed December 22, 2024.