Negro League Baseball: Mayor Lionel Wilson's Life And Times Before The Oakland Larks
Baseball cards of the Negro Leagues – SABR's Baseball Cards Research Committee
Baseball cards of the Negro Leagues – SABR's Baseball Cards Research Committee
West Coast Negro Baseball Association Collection — Calisphere
West Coast Negro Baseball Association Collection — Calisphere
West Coast Negro Baseball Association Collection — Calisphere
West Coast Negro Baseball Association Collection — Calisphere
Integration of the PCL – Ebbets Field Flannels
Negro League Baseball: Mayor Lionel Wilson's Life And Times Before The Oakland Larks
West Coast Negro Baseball Association Collection — Calisphere
Baseball cards of the Negro Leagues – SABR's Baseball Cards Research Committee
West Coast Negro Baseball Association official score card Oakland Larks versus San Francisco Sea Lions — Calisphere
Integration of the PCL – Ebbets Field Flannels
San Francisco Seal Lions baseball team