Some fun notes and generally interesting stuff from the actual eras...
Here's an article that mentions Josh Gibson flying out on a ball hit roughly 450 feet away.
Really, really fascinating Q & A from 1928. Mentions "Babe Ruth" Wilson swings like Zack Wheat. Also mentions Oscar Charleston could play LF, CF, RF, 1B, and P.
An article from 1935 calls Mule Suttles the "Babe Ruth" of the Negro Leagues.
Another reference from a 1938 game description of Suttles being the colored Babe Ruth.
An article from 1930 that mentions an anecdote about Giant manager John J. McGraw trying to sneak "Rube" Foster to ST as a Cuban before Foster was given away due to popularity as a Negro. The writer also compares "Casey" Horn to Rube Waddell.
A 1947 article mentions a guessed anecdote that Washington Senators Manager Clark Griffith and SP Walter Johnson saw Gibson and Johnson said Gibson was worth $250,000. Also mentions that he hit 12 HR in 1946 and 14 HR in 1943 at Griffith Stadium.