The Associated Grocery Manufacturers of America, Inc.-Award of distinction presented to Elmer Verner McCollum, November 29, 1938, 1938-11-29, Box: 4, Folder: 4. Personal Papers of Elmer V. McCollum, PP 120. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/189152 Accessed June 01, 2024.