Brown fought during the early 20th century, a period in which boxing records were not well kept.
Foreman had a 16-4 amateur boxing record going into the Olympics.
Urbina's amateur boxing record is 45-10, including national and international competition.
He has a boxing record of 22 wins with 5 defeats.
His professional boxing record does not even contain a birth date for him.
His professional boxing record is three wins with one draw.
Zbikowski is also a boxer and holds a 4-0 boxing record.
Kahwagi had a boxing record of 43-0 during his amateur career.
His professional boxing record is two wins and one draw.
His career professional boxing record was a mediocre 9-12-2.