Young Jack O'Brien, born John Thomas Augustine Hagan was a

lightweight Lightweight is a weight class in combat sports and rowing (sport), rowing. Boxing Professional boxing The lightweight division is over 130 pounds (59 kilograms) and up to 135 pounds (61.2 kilograms) boxing weight classes, weight class in the spor ...

and

welterweight Welterweight is a weight class in combat sports. Originally the term ''welterweight'' was used only in boxing, but other combat sports like muay Thai, taekwondo, and mixed martial arts also use it for their own weight division system to classify th ...

boxer from

Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...

Biography

Young Jack O'Brien was the brother of

Philadelphia Jack O'Brien Joseph Francis Hagan (better known as Philadelphia Jack O'Brien) (January 17, 1878 – November 12, 1942) was an American list of world light-heavyweight boxing champions, world light heavyweight boxing champion in 1905 when he defeated Bob Fitzs ...

and the cousin of heavyweight boxer Jack Rowan. On September 18, 1912 he beat Young Brown at the St. Nicholas Arena in

New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...

References

Boxers from Pennsylvania Lightweight boxers 1894 births Year of death missing American male boxers

External links

* {{US-boxing-bio-stub