Baseball Across Borders National Museum of American History
1900s to 1930s, Baseball, the Color Line, and Jackie Robinson, Articles and Essays, By Popular Demand: Jackie Robinson and Other Baseball Highlights, 1860s-1960s, Digital Collections
1920s Instructional Film, 01/22/2015
Golden age of baseball - Wikipedia
Negro Baseball Leagues (1920-1950) •
1920 Baseball History - This Great Game
Harlem and Baseball in the 1920s – Digital Harlem Blog
Play Ball, Eh? - Canada's History
Walter Rabbit Maranville N(1891-1954) American Baseball Player Photographed While With The Pittsburgh Pirates 1920S Poster Print by (24 x 36) : Sports & Outdoors
Baseball Across a Changing Nation, Classroom Materials at the Library of Congress
Harlem and Baseball in the 1920s – Digital Harlem Blog
September 24, 1920: Babe Ruth becomes first player to hit 50 home runs in a season – Society for American Baseball Research
1920 Baseball Season
1920s baseball hi-res stock photography and images - Alamy