I defeated at least one man who was a champion in the 1920's, the 1930's, the 1940's, the 1950's, and the 1960's. Who am I?
so this individual actually fought from the 20s til the 60s? or that's when those champions were active?
That is correct. 1920's---Pete Latzo 1930's---several, including Lou Brouillard 1940's---Billy Conn 1950's---Archie Moore 1960's---Archie Moore
I will have to agree, from Latzo to Moore, with Charles, Overlin, Conn, Brouillard, Krieger, Risko, Vince Dundee, Jeby & Freeman in between.
It is the wrong Decades, But Evander Holyfield has: Foreman 70s, Holmes 80s, Tyson 90s, Rahman 00s, and he is looking for a victim in the 10s, which i guess is open slather from now on! Ali has Archie Moore, 50s, Sonny Liston 60s, Joe Frazier 70s, George Foreman 90s. Tantalisingly close, but he couldnt quite master the 80s with his losses to Holmes and Berbick.
Even more remarkable is that he did something so incredible, and most people dont even know who he is, much less put him anywhere near a top 100 list.