Negro National League of Professional Baseball Clubs uniform player's ontract, c. 1948

Negro National League of Professional Baseball Clubs uniform player's ontract, c. 1948, MSSP10175-01, Box: 1, Folder: 1. Richard Powell Negro Leagues Baseball Correspondence, MSSP_10175. University of Notre Dame Rare Books & Special Collections. https://archivesspace.library.nd.edu/repositories/3/archival_objects/2320417 Accessed August 31, 2026.