April 11, 1947: Jackie Robinson debuts in a Dodgers uniform at Ebbets Field – Society for American Baseball Research
The Breakthrough: In May 1947 Jackie Robinson proved he belonged in the bigs - Sports Illustrated
TSN Originals: How The Sporting News covered Jackie Robinson's first spring training
Old Yankee Stadium's rise and fall: Complete story of 'The House that Ruth Built' 100 years after its opening
Voices from the Great Black Baseball Leagues by John B. Holway, Frank Ceresi - Ebook
The Breakthrough: In May 1947 Jackie Robinson proved he belonged in the bigs - Sports Illustrated
May 30, 1947: Braves' Memorial Day sweep spoils Jackie Robinson's Boston debut – Society for American Baseball Research
The Breakthrough: In May 1947 Jackie Robinson proved he belonged in the bigs - Sports Illustrated
From SPORT magazine: A look inside the joy and loneliness of Jackie Robinson's rookie season - ESPN
The Breakthrough: In May 1947 Jackie Robinson proved he belonged in the bigs - Sports Illustrated
Jackie Robinson in 1947: Debut with the Dodgers – Society for American Baseball Research