Research Institute of America pamphlet, Kansas fish and game handout opaque systems letter, personal notes, contract, great plains Packard club, one document from 1963, the rest early 1970's, Box: 9, Folder: 4. Mayhew family papers, RH MS 634. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/82018 Accessed May 17, 2024.