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Young Jack O'Brien

b. 1894

American boxer

Boxer

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About Young Jack O'Brien

Born 1894. Young Jack O'Brien was an American boxer.

Young Jack O'Brien, born John Thomas Augustine Hagan was a lightweight and welterweight boxer from Pennsylvania.

Biography Young Jack O'Brien was the brother of Philadelphia Jack O'Brien 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.

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Important facts

Born

11 October 1894, Philadelphia

Birth century

19th century

Occupation

Boxer

Nationality

United States

Also known as

John Thomas Augustine Hagan

Frequently asked questions

Who was Young Jack O'Brien?

American boxer

When was Young Jack O'Brien born?

Young Jack O'Brien was born on 11 October 1894 in Philadelphia.

What was Young Jack O'Brien's occupation?

Young Jack O'Brien was a boxer.

What nationality was Young Jack O'Brien?

Young Jack O'Brien was American.

Sources & further reading

· Wikipedia: Young Jack O'Brien

· Wikidata: Q8058196

· DBpedia: Young Jack O'Brien

Cite this page

APA: Biography.guide. (2026). Young Jack O'Brien. https://biography.guide/young-jack-o-brien/

MLA: "Young Jack O'Brien." Biography.guide, https://biography.guide/young-jack-o-brien/.

Chicago: "Young Jack O'Brien." Biography.guide. https://biography.guide/young-jack-o-brien/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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