Letter to Robert N. Sudlow from L.E. James Helyar of the KU[University of Kansas] Friends of the Library; 4 September 1991, Box: 1, Folder: 15. Personal papers of Robert N. Sudlow, PP 514. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/128902 Accessed May 19, 2024.