Campbell, Robert, KU # 4055, Kansas Transitional Study, May 28, 1993, Box: 8, Folder: 10. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/452388 Accessed July 18, 2025.