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Jeremiah A. O'Leary

1881 – 1972

Irish-American lawyer, journalist and politician

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About Jeremiah A. O'Leary

Lived 1881 – 1972 (aged 90). Jeremiah A. O'Leary was an American.

Jeremiah Aloysius O'Leary (July 24, 1881 – March 13, 1972) was an Irish-American lawyer, journalist and politician who was arrested and charged with treason under the Espionage Act during World War I.

Long active in Irish nationalist politics, O'Leary was indicted by a grand jury in 1917 and charged with inciting mutiny in the United States Armed Forces. He fled the state and spent several months as a fugitive, but was captured and returned to New York. After a nine-month trial, O'Leary was acquitted on all but one of the charges (the last of which hung the jury) and was released. Later indictments against him were dismissed.

Career

O'Leary founded the American Truth Society in 1912, an anti-British organization that sought to prevent an Anglo-American alliance and drew support primarily from the Irish and German diaspora. During the 1916 presidential election, O'Leary sent president Woodrow Wilson a telegram attacking him for his pro-British foreign policy, claiming it would cost him the election.

O'Leary was chairman of the Larkin Amnesty Committee which sought a pardon for Jim Larkin from the Governor. In 1920, O'Leary ran for Congress in New York's 18th congressional district, challenging incumbent Democrat John F. Carew. Running as a Farmer–Laborite, O'Leary campaigned on the release of all political prisoners, opposition to the League of Nations, U.S. recognition of the revolutionary governments in Ireland and Russia, and public ownership of mines. Although early returns from the New-York Tribune showed O'Leary in the lead, he ultimately came in third place with just over 25% of the vote.

Later in life, O'Leary campaigned for the release of Tom Mooney. In 1933, he was appointed to the Triborough Bridge Authority by mayor John P. O'Brien.

Works The Fable of John Bull and Uncle Sam ( 1916). New York: American Truth Society. My Political Trial and Experiences (1919). New York: Jefferson Publishing Co.

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Important facts

Birth century
Nationality
Also known as
J. A. O'Leary, Jeremiah Aloysius O'Leary

People in Jeremiah A. O'Leary's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Jeremiah A. O'Leary's

Frequently asked questions

Who was Jeremiah A. O'Leary?

Irish-American lawyer, journalist and politician

When was Jeremiah A. O'Leary born?

Jeremiah A. O'Leary was born on 24 July 1881 in Glens Falls.

When did Jeremiah A. O'Leary die?

Jeremiah A. O'Leary died on 13 March 1972 in New York City.

What nationality was Jeremiah A. O'Leary?

Jeremiah A. O'Leary was American.

Sources & further reading

· Wikipedia: Jeremiah A. O'Leary

· Wikidata: Q134330966

· DBpedia: Jeremiah A. O'Leary

Cite this page

APA: Biography.guide. (2026). Jeremiah A. O'Leary. https://biography.guide/jeremiah-a-o-leary/

MLA: "Jeremiah A. O'Leary." Biography.guide, https://biography.guide/jeremiah-a-o-leary/.

Chicago: "Jeremiah A. O'Leary." Biography.guide. https://biography.guide/jeremiah-a-o-leary/.

Data last updated: 2026-09-23 · Spot an error? Report a correction.

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