Softballers Magazine; The Authoritative Softball Magazine. Stamford, Conn.: The International Softball Publishing Corporation, March 1938

Softballers Magazine; The Authoritative Softball Magazine. Stamford, Conn.: The International Softball Publishing Corporation, March 1938, Volume: Gilbert D944. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527502 Accessed December 27, 2025.