Vernon Sparks, Donna Thommen (?), Mark Miller, Chris Johnson, Diana Fell two copies, James Peavler, Woody Woodman, Justin Thiesing two copies, Max Murdock, Don McRae, Rodney Warren, Dave Acker, Dale Sterrett, Bill Metzger, Fred Weber two copies

Vernon Sparks, Donna Thommen (?), Mark Miller, Chris Johnson, Diana Fell two copies, James Peavler, Woody Woodman, Justin Thiesing two copies, Max Murdock, Don McRae, Rodney Warren, Dave Acker, Dale Sterrett, Bill Metzger, Fred Weber two copies, Box: 2, Folder: 14. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154245 Accessed December 24, 2025.