Jack Dempsey, Harry Houdini, and Benny Leonard Spar Boxing
Houdini in 1899
March 24, 1874
|Died||October 31, 1926 (aged 52)
Detroit, Michigan, U.S.
|Cause of death||Peritonitis|
|Occupation||Illusionist, magician, escapologist, stunt performer, actor, historian, film producer, pilot, debunker|
|Spouse(s)||Wilhelmina Beatrice "Bess" Rahner
(m. 1894; his death 1926)
|Relatives||Theodore Hardeen (brother)|
Harry Houdini preparing to be chained and locked up in a box and lowered into the East River, NYC July 1912.
Dempsey and Firpo, 1924 painting by George Bellows
Dempsey authored a book on boxing titled Championship Fighting: Explosive Punching and Aggressive Defense and published in 1950. The book emphasizes knockout power derived from enabling fast motion from one's heavy bodyweight. Dempsey's book became and remains the recognized treatise in boxing.
During World War II while in the Coast Guard, he co-authored How to Fight Tough with professional wrestler Bernard J. Cosneck. The book was used by the Coast Guard to instruct guardsmen on close-quarters hand-to-hand combat, incorporating boxing, wrestling, and jiujitsu.