Ken Griffey Jr. had Jackie Robinson Day idea

Jackie Robinson Day: Baseball Celebrates a Pioneer, but Should Strive for More, News, Scores, Highlights, Stats, and Rumors

April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research

Behind the Icon Mitchell & Ness Nostalgia Co.

No. 42 jersey tribute began in 2007 with Griffey

Put No. 42 in the game

Barry Bonds and Ken Griffey Jr at the 1990 MLB all-star game : r/OldSchoolCool

Ken Griffey Jr. had Jackie Robinson Day idea

Why is today Jackie Robinson Day? The reason MLB players wear 42 & more to know about baseball's annual April 15 tribute

24 Stories — The Tribute, by Mariners PR

I think we making Jackie proud today': Mariners' Dee Gordon on being Black in baseball on MLB's Jackie Robinson day

Jackie Robinson, Willie Mays still attracting big dollars for cards, memorabilia - Sports Collectors Digest