Jay Johnson five copies, Linda Vaughn, Bill Klink (1993) two copies, Marty Reddick (1993) two copies, Jason Jackson (1993), Marvin Keil, Doug Willis (2001), Kerry Wark (2000), Travis Bray (2001), Matt Christensen, Dan Zaharia (2000), Dick Ross (1994), James Scholes (1995), Box: 2, Folder: 27. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154258 Accessed January 03, 2025.