Meet the two Blacks who played professional baseball in 1800s

Baseball Demographics, 1947-2016 – Society for American Baseball Research

Moses Fleetwood Walker was the first African American to play pro baseball, six decades before Jackie Robinson

The Secret History of Black Baseball Players in Canada's Great White North

Professional Baseball - Encyclopedia of Milwaukee

Breaking Barriers: The History of Black Ballplayers in Japan - JapanBall

Discovering Portland's African American baseball teams

Places of Black Baseball (U.S. National Park Service)

How LA's Mexican American Baseball Teams Hit A Home Run

The Best Baseball Books of 2009 — College Baseball, MLB Draft, Prospects - Baseball America

Meet the two Blacks who played professional baseball in 1800s before the sport was desegregated - Face2Face Africa

CAAM #blackhistory: On April 10, 1947, Jackie Robinson becomes first black player signed to a Major League Baseball contract

Florida Time: The history of baseball in the Sunshine State

Baseball history: The Phillies and the A's faced off in the 'City Series' for over 50 years

The history of black baseball in D.C. includes Frederick Douglass' sons, Josh Gibson and the fight for equality