Neal Harper, Monica Thielenhaus, Dennis Freeman, Maisha Johnton (1999), Justin Howbert (1999), Marsha Johnston, Andrew Schrader (2001), Ed Krasny (1995), Box: 2, Folder: 60. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154291 Accessed December 22, 2024.