April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research
Remembering Jackie Robinson Day
Remembering Jackie Robinson Day
No. 42 jersey tribute began in 2007 with Griffey
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Before everyone wore 42 for Jackie Robinson, Ken Griffey, Jr. did it in 1997 and it was immortalized on a trading card : r/baseball
Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy
Seattle Mariners, Ultimate Pop Culture Wiki
Jackie Robinson Day - Wikipedia
Ken Griffey Jr. had Jackie Robinson Day idea
The many uniforms of Hall of Famer Ken Griffey Jr.
Griffey family dinner lessons led to enduring way to honor Jackie Robinson
Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy
Before everyone wore 42 for Jackie Robinson, Ken Griffey, Jr. did it in 1997 and it was immortalized on a trading card : r/baseball
Jackie Robinson, Biography, Statistics, Number, Facts, & Legacy
Jackie Robinson Day - Wikipedia
The Black Baseball Initiative
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