The Biographical Encyclopedia of the Negro Baseball Leagues

Booklist - "This is a landmark publication in the fields of baseball history and African American history. It documents more than 4,000 players on Negro League teams from 1872 through 1950. According to the publisher, this is the first book to comprehensively cover the careers of all African Americans who played with a team of major-league quality or whose careers had some historical significance. It includes all major-league Hall of Fame players who also played in the Negro League. The author traversed the country, interviewing men who played in the Negro Leagues about their baseball exploits and the careers of their now-deceased teammates. Information was also gathered by analyzing archival resources for contemporary accounts of games and by viewing microfilm reels of black newspapers."
The Biographical Encyclopedia of the Negro Baseball Leagues
Blackbaseball's Negro Baseball Leagues