No. 42 jersey tribute began in 2007 with Griffey
Mariners at forefront of establishing Jackie Robinson Day
Topps Ken Griffey Jr Values - MAVIN
Jackie Robinson Day carries special meaning for Ken Griffey Jr. - Seattle Sports
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Ken Griffey Jr. had Jackie Robinson Day idea
FS: 1990s Griffeys, HOF Autos/Relics, Superfractors, 1/1s, Rare Patches - Blowout Cards Forums
Jackie Robinson Day Museum of the City of New York
42” watered down: LaTroy – The Denver Post
We're headed back to the 1980s we want to hear what YOU think - Beckett News
Top 100 MLB players of all time - Nos. 25-1 - ESPN
