Rosenbach, J. Page to Mrs. Russell D. Martin regarding Captain Robert Page Rosenbach missing in action, January 20, 1971, Box: 1, Page: 10. The Dr. David A. Otto, Special Envoy for the Missouri State Teachers Association during the time of the 1971 Paris Peace Talks, collection, RH MS 1257. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/32490 Accessed May 16, 2024.