Series XI - Tony Ridder, Michael Florian Jilg, D.W. Acker, Bruce Sherratt Burkholder, Anna Seeber Shaw, Paul D. Zehr, Phyllis Copt, Anita M. Gish, 1988, Box: 1, Folder: 23. Kansas Artists Postcard Series, RH MS 1331. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/192183 Accessed May 25, 2024.