I randomly found a great blog with a really wonderful expose on Jack Johnson.
America’s 1st Black heavy weight champion & celebrity. Taken down for being a bad example to good black folks for marrying multiple white women.
Check out the site here: The Selvedgeyard



Also watch “Unforgivable Blackness: The Rise and Fall of Jack Johnson” a documentary by Ken Burns. While it follows all the tropes of a KB documentary, the story was still insanely sad and well told. (I did cry in shame and anger at humanity.) Its also on Netflix.