George Altman played in the Majors, Negro Leagues and Japan
Take Me In to the Ballgame
Getting Back into Baseball Cards.in Japan: February 2021
An insider's guide to Japanese baseball – Orange County Register
Major League Baseball - Wikipedia
Larry Doby, Don Newcombe first Major Leaguers to play in NPB
Major League Baseball - Wikipedia
Dime Boxes -- The Low-End Baseball Card Collector's Journey: Short Term Stops: The All-Tigers Team
Salute to the Negro Leagues: The Great Baseball Pioneer, Larry Doby!
Monte Irvin The Winning Run
Dime Boxes -- The Low-End Baseball Card Collector's Journey: Short Term Stops: The All-Tigers Team
Black ThenLarry Doby: Made History as the First Black Baseball Player in the American League - Black Then
Gammons: Why so many pitchers are finding MLB success after returning from stints in Korea and Japan - The Athletic
Major League Baseball in History (Part 4) — On This Day in Sport