Ogallala scholarly papers and other topics, correspondence by C. Bertrand Schultz and Claude W. Hibbard, photograph, 1955 - 1972, Box: 2, Folder: 13. Personal papers of Larry D. Martin, PP 630. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/494432 Accessed March 01, 2025.