Jim Branan (1993), Jim Kaad, Dean Newton, Cliff Saide, Emile Kirwin, Jayce Oniki, Don Holloway, Kevin Hughes, Dick Hundertfund, Dorothy McMullen (with negative), Raymond Newton, Lee Barnhart, Box: 2, Folder: 20. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154251 Accessed December 22, 2024.