without cheating I will have a go at this, all straight forward it would seem but I am already unsure about the first

#1. How long was Joe Louis Heavyweight Champion?

A - 13 years

#2. In what division, and at what weight did Oscar De La Hoya begin his pro boxing career?

A - lightweight (or maybe the one below !)

#3. Who did Jack Johnson win the Heavyweight title from?

A - it was Burns and I have forgotten his first name

#4 Big George Foreman won the Heavyweight Crown by a 2nd round KO from Joe Frazier in January 1973, how many times did Foreman defend the title and how long was he Heavyweight Champion before losing it to Muhammad Ali?

A - The Rumble was in October 74 I know that so in 21 months I will guess that Foreman defended it.....I only know that Norton was defo one of them. Will go for 3 !