The Red Sox could've signed Jackie Robinson. They gave him a sham tryout instead.
Nashua recognized for historic role in racially integrating baseball in the 1940s
Baseball Has Done It by Jackie Robinson
Column: Remembering Jackie Robinson in town where it started
Breaking the barrier: Integrating the major leagues one team at a time 1947-1959
Integrating Baseball, before Jackie Robinson - JSTOR Daily
Silver Gelatin Photo of Integrated Men's Baseball Team Half a Century Before Jackie Robinson, late 19th Century
Home - Jackie Robinson
Used Book in Good Condition
Jackie Robinson and the Integration of Baseball
The Real Meaning of Jackie Robinson – News4usonline
Did Jackie Robinson Really Break Baseball's Color Barrier?
Integrating Baseball, before Jackie Robinson - JSTOR Daily
Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy
VOICES: Jackie Robinson Day is much bigger than baseball - The Atlanta Voice
Jackie Robinson: His Life and Career in Pictures