Jackie Robinson's No. 42 is retired to honor the man who broke the color barrier in baseball in 1947.
Pumpsie Green, 1st black player on Boston Red Sox, dies
Former Red Sox infielder Pumpsie Green dies at 85
Pumpsie Green, 1st black player on Red Sox, dies at 85 - The Boston Globe
Pumpsie Green, first black player on Boston Red Sox, dies at 85 - Newsday
Shortstops: A reluctant trailblazer
Elijah 'Pumpsie' Green dead: Boston Red Sox's first black player dies aged 85 - Mirror Online
Pumpsie Green - Wikipedia
Black History Month: Remembering Pumpsie Green Breaking Red Sox Barrier
Obituary: “Pumpsie” Green (1933-2019) – RIP Baseball
Pumpsie Green, 1st Black Player On The Boston Red Sox, Dies At 85 - NPR