Don Amspacker, Stacy Ballou (1997), Ryan Alley (1999), Jamie Balluch (1999), Homer Hunter, Charles Black, Peggy Brown, Janice Black (1999), Jerry Boyce (1994), Robert Harper (includes negative)

Don Amspacker, Stacy Ballou (1997), Ryan Alley (1999), Jamie Balluch (1999), Homer Hunter, Charles Black, Peggy Brown, Janice Black (1999), Jerry Boyce (1994), Robert Harper (includes negative), Box: 2, Folder: 61. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154292 Accessed December 25, 2025.