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John McCunn

1820 – 1872

American judge

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About John McCunn

Lived 1820 – 1872 (aged 51). John McCunn was a judge.

John H. McCunn (November 2, 1820 – July 6, 1872) was an Irish-born American judge, lawyer, and military officer who played a significant role during the American Civil War. He later became embroiled in political corruption and was impeached and removed from office.

Early life and career McCunn was born in Burnally, Limavady, County Londonderry, Ireland, on 2 November 1820 son of William McCunn and Martha [Matty] McKinley. He belonged to a poor Irish immigrant family who arrived in New York City in the 19th century. He worked as a dockhand before training as a lawyer, and eventually becoming a judge.

Military service When the American Civil War began in 1861 he joined the Union Army as a captain in the 69th New York Infantry Regiment before he recruited the 37th New York Infantry which he commanded as colonel. At war's end he was brevetted brigadier general.

Judicial and political career McCunn was a member of the infamous Tweed Ring, which he aided by naturalizing new citizens to boost his election rolls. On one day alone, he naturalized over 2,000 new voters. However, when the scandal was uncovered, he was impeached and removed from his judicial office.

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Important facts

Birth century
Occupation

Contemporaries

People whose lives overlapped John McCunn's

Frequently asked questions

Who was John McCunn?

American judge (1820-1872)

When was John McCunn born?

John McCunn was born on 2 November 1820.

When did John McCunn die?

John McCunn died on 6 July 1872.

What was John McCunn's occupation?

John McCunn was a judge.

Sources & further reading

· Wikipedia: John McCunn

· Wikidata: Q6247592

· DBpedia: John McCunn

Cite this page

APA: Biography.guide. (2026). John McCunn. https://biography.guide/john-mccunn/

MLA: "John McCunn." Biography.guide, https://biography.guide/john-mccunn/.

Chicago: "John McCunn." Biography.guide. https://biography.guide/john-mccunn/.

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

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