Jackie Robinson's Battles for Equality On and Off the Baseball Field
Griffey family dinner lessons led to enduring way to honor Jackie Robinson
April 15, 1997: Jackie Robinson's Number Retired
Jackie Robinson Day 2020 complete guide
42 days until Mariners Opening Day! Remembering Jackie Robinson
Ken Griffey Jr. had Jackie Robinson Day idea
From Jackie to Junior. How Ken Griffey Jr. invented Jackie…, by Adam Worcester
April 15, 1997: Jackie Robinson's Number Retired
Mariners to retire Ken Griffey Jr.'s number throughout the organization
4/15/22: Home Opener/Jackie Robinson Day Open Game Thread - Lookout Landing