BoxRec

Anyone here know how many fighters that Jack Johnson had trained
over his "fistic" career ?
i had heard that he had even trained some fighters back in the 1910's
for the "Great White Hope" sweep-stakes.

here's one "Cpt. Bob Roper.

https://boxrec.com/wiki/index.php/bob_Roper

Floyd Johnson
https://boxrec.com/en/box-pro/16892
don't believe it?
then check this out
-1922-

https://ebay.com/itm/295469769702

https://ebay.com/itm/394885832530

George Godfrey (1922)

Marty Cutler

https://ebay.com/itm/225663122288

LeRoy Haynes
-1933-
https://ebay.com/itm/325675430230

Who Dat (Dem)?

https://ebay.com/itm/225663122337

https://ebay.com/itm/167448147708

Jimmy Doyle

(Jack Johnson had trained him for 18 months at the Main Street Gym in Los Angles)

https://en.wikipedia.org/wiki/Jimmy_Doyle_(boxer)

Johnson also trained heavyweight Abe Simon for his first title fight with Joe Louis in 1941.