Baseball changed due to Jackie Robinson. He was just getting started.
Inside the Jackie Robinson Museum, the 'passion project' that's about more than a sports legacy
Jackie Robinson – Dodger Thoughts
First Comes World Series Ring Then First Win for Amarillo Native
Sandy Koufax - Wikipedia
Cardinals Player Hiding Signed Baseballs Throughout Busch Stadium
Baseball Has Yet to Deliver Greatest Tribute to Jackie Robinson - The New York Times
Robinson as a Dodger: 1947 to 1956, Baseball, the Color Line, and Jackie Robinson, Articles and Essays, By Popular Demand: Jackie Robinson and Other Baseball Highlights, 1860s-1960s, Digital Collections
42 Today by Kevin Merida, Ken Burns, Sarah Burns - Audiobook