Why Floyd Mayweather Is The Last Of A Kind (deadspin.com)
Murderers’ Row (boxing) – Wikipedia
Charley Burley: Great Fighter No One Knows | BoxingInsider.com
Wade Hall Collection of American Letters: Hiawatha Gray scrapbook (uky.edu)
https://thegruelingtruth.com/boxing/the-story-of-harry-wiley-boxings-greatest-unsung-trainer/
chrisxseattle 