William Harrison “Jack” Dempsey
Boxing heavyweight champion
He had ten brothers and sisters. Jack chose his fighting name saying that he wasn’t a very faithful Mormon. Jack Dempsey was champion from 1919 to 1926 and was known to extend his hand to his defeated opponent.
Source: Manassa not ready to forget Dempsey By W.H. Stickney Jr. Houston TX Chronicle, 01 Aug 1999, C7
“The Manassa Mauler. ” Jack won more than 80 fights by the time he was 24 years of age