Jack Dempsey Jack Dempsey William Harrison "Jack" Dempsey (June 24, 1895 – May 31, 1983), nicknamed "Kid Blackie" and "The Manassa Mauler", was an American professional boxer who competed from 1914 to 1927, and reigned as the world heavyweight champion from 1919 to 1926. A cultural icon of the 1920s, Dempsey's aggressive fighting style and exceptional punching power made him one of the most popular boxers in history. Many of his fights set financial and attendance records, including the first million-dollar gate. Dempsey is ranked tenth on "The Ring" magazine's list of all-time heavyweights and seventh among its Top 100 Greatest Punchers,
Ed Martin (boxer) Ed Martin (boxer) Ed "Denver Ed" Martin (born September 10, 1881) was an African American boxer who was the World Colored Heavyweight Champion from 24 February 1902, when he beat Frank Childs, until 5 February 1903, when he lost his title to Jack Johnson, the only colored heavyweight champion (and first African American) to win the world's heavyweight championship. Known as "Denver Ed Martin" and "The Colorado Giant", Martin was born in Denver on September 10, 1881. His height was listed as , while some sources report that he was 6' 6" or 6' 6½" tall. Martin was a strong