42' is an inspiring tribute to Jackie Robinson
MLB ready to celebrate Jackie Robinson Day - Jackie Robinson
History of retired numbers dates back to Lou Gehrig Day
The only day MLB players can wear No. 42? Jackie Robinson Day
Jackie Robinson - Facts, Quotes & Stats
Jackie Robinson: Biography, Baseball Player, Activist
Movie, memorabilia and memories: Pasadena celebrates Jackie Robinson's 104th birthday – Pasadena Star News
Managing History: Jackie Robinson and Managers – Society for American Baseball Research
Facts about Jackie Robinson, The Learning Key