Texas State Aviation Association. San Antonio, Texas: Texas State Aviation Association, January 29, 1951

Texas State Aviation Association. San Antonio, Texas: Texas State Aviation Association, January 29, 1951, Volume: Gilbert E254. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527724 Accessed December 28, 2025.