Great Plains Progress. Abilene, Texas: Great Plains Life Insurance Company, November 1963

Great Plains Progress. Abilene, Texas: Great Plains Life Insurance Company, November 1963, Volume: Gilbert C222. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526119 Accessed March 23, 2026.