Tom Gunn, H.W. Craig, Greg Haas, Bob Oberle, Gene Vernigan, Scott Werzberger (?), Jerad Haas, Mark Underhill, Chuck Dempewolf, Peggy Brown, Lynn Higerd, Vic Winter, Max Murdock, Larry Woodman, Diana Fell, Box: 2, Folder: 43. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154274 Accessed January 03, 2025.