Bob Thorne, Chas Nichols, Betty Cyphers, Darren Swarts (1993), Jared Abendroth, Lyndia Borror, William Ebert, Jim Meisner, Paul Mitchell, David Aarnes, Michael Franklin, Logan Apollo two copies, Steve Greer, Randy Franklin, Randy Clinton, Otis Babcock, Robert Barnow, Gary Catterson, Box: 2, Folder: 24. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154255 Accessed March 11, 2025.