Caveats about incomplete data and stuff notwithstanding: This. Is. Cool:
This data is constructed from the best available information as provided by Larry Lester, Wayne Stivers and Dick Clark of the Negro Leagues Researchers and Authors Group. It contains data culled from newspaper boxscores, covering league sanctioned games from 1920 to 1948, which was produced for a study sponsored by Major League Baseball and the National Baseball Hall of Fame and Museum. It reflects totals as compiled by the NLRAG up to 2006. As new credible information is continually unearthed, these numbers will continue to change.
Add this to other great work being done on the Negro Leagues, and researchers, would-be researchers, and the merely curious have a whole lot of neat stuff to sift though.