SSDI [Social Security Death Index] and Medical History (2002 Re-application) (Back-up documentation), 2000, Box: 22, Folder: 3-4. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/305503 Accessed June 15, 2025.