Correspondence - Jerry Baumchen, Keith Evans, John Schuman, Tamara Koyn, Sue Clifton, skydiving, Parachutist Novemeber 1993, Box: 35, Folder: 25. Personal papers of Janet Hamburg, PP 516. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/139531 Accessed June 14, 2025.