Save for William W. Martin scrapbook; pamphlets; Topeka chamber of commerce, 1970-73 & 1975-78, Box: 15, Folder: 4. Martin Tractor Company records, RH MS 864. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/154073 Accessed June 21, 2024.