Jackie Robinson Day, when MLB players can wear No. 42
Uncle Mike's Musings: A Yankees Blog and More: April 15, 1947: We Are All Number 42
MLB players to wear #42 Monday to honor Jackie Robinson Day
Jackie Robinson Tribute Is Proving Popular - The New York Times
Column: Meet Ray Lamb, the last Dodger to wear Jackie Robinson's No. 42 — by mistake - Los Angeles Times
MLB celebrates Jackie Robinson
Podcast: Jackie Robinson breaks baseball's color barrier
42' shows why Jackie Robinson still matters
Robinson's 42 In Dodger Blue For All Uniforms On April 15
Major League Baseball celebrates 75th anniversary of Jackie Robinson's debut
Why are Boston Red Sox players all wearing No. 42 jerseys? Jackie Robinson day across the MLB
Baseball honors Jackie Robinson Day 75 years after he broke the color barrier
Who was the last player to wear No. 42 for each team?
Why is today Jackie Robinson Day? The reason MLB players wear 42 & more to know about baseball's annual April 15 tribute