Best current MLB players at each jersey number, 1-97
WATCH: America's Sporting Shame - the story of the impact of Negro leagues on baseball, Baseball News
Was Roberto Clemente the Best MLB Player to Wear No. 21?
Philadelphia apologizes for 'tremendous racism' against Jackie Robinson - The Globe and Mail
Jackie Robinson Day: The only time MLB players can wear No. 42
April 15, 1997: Ken Griffey Jr. wears number 42 to honor Jackie Robinson on 50th anniversary – Society for American Baseball Research
MLB players to wear No. 42 — in Dodger blue — for 75th anniversary of Jackie Robinson's big league debut
After Jackie Robinson, MLB integration was halting - The Washington Post
Rubama: Coaches wanted their team of 7-year-olds to learn about Jackie Robinson. They got a lesson and wore No. 42 jerseys. – The Virginian-Pilot
Boston Red Sox's Alex Cora: 'I'm not a big-league manager or big-league player without Jackie Robinson'
Jackie Robinson's Long Fight Against Discrimination, by Seth S. Tannenbaum, Weekend Caucus
South Jersey coach teaches unity, history through Jackie Robinson
Jackie Robinson Day 2020, All Players Wearing #42 and Patches Today – SportsLogos.Net News
Jackie Robinson Day: Every MLB player will wear No. 42 to honor baseball icon