Address by Frank Theis before national convention of Grain and Feed Dealers National Association at Dallas, Texas, October 10-11, 1937, Box: 22, Folder: 4. Frank A. Theis papers, RH MS 948. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/60804 Accessed July 17, 2025.