Address by Fred Lake, President of Colorado Milling and Elevator Co. before Oklahoma Milling and Feed Dealers Association, "Conditions Prevailing in the Grain Trade", April 23, 1954, Box: 20, Folder: 33. Frank A. Theis papers, RH MS 948. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/60754 Accessed July 13, 2025.