No. 42 jersey tribute began in 2007 with Griffey

Too much of a good thing

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

Ken Griffey Jr. Seattle Mariners Authentic Jersey Jackie Robinson Tribute

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Authentic Turn Ahead The Clock Jersey Seattle Mariners 1999 Ken Griffey Jr. - Shop Mitchell & Ness Authentic Jerseys and Replicas Mitchell & Ness Nostalgia Co.

Ken Griffey Jr. Seattle Mariners Authentic Jersey Jackie Robinson Tribute

Ken Griffey Jr. Started Wearing 42 on Jackie Robinson Day! #shorts

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Jackie Robinson Day 2023: If not for Jackie …

Rookie cards for every MLB No. 1 draft pick since 1965 - Sports Collectors Digest

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