Miscellaneous documents, KS petrol industries, motor fuel gallonage report, thank you letter, auto registry, 1939-early 1940s, Box: 2, Folder: 2. Mayhew family papers, RH MS 634. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/81938 Accessed July 11, 2025.