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Cyrus Alger

1782 – 1856

American arms manufacturer and inventor

Engineer Metallurgist
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About Cyrus Alger

Lived 1782 – 1856 (aged 73). Cyrus Alger was an American engineer and metallurgist, known for Columbiad.

Cyrus Alger (November 11, 1782 – February 4, 1856) was a United States arms manufacturer and inventor.

Biography He was born between Hephzibah Keith and Abiezer Alger on November 11, 1782, in West Bridgewater, Massachusetts. Early in life Alger became an iron founder, training in one of his father's three foundries in the Boston area, in Easton, Massachusetts. In 1809, he worked with Thomas Handasyd Perkins, likely tied to Perkins's interest in the Monkton Iron Works in Vergennes, Vermont. Initially Monkton aimed to provide iron to American consumers while the Embargo stymied foreign competition. While the Embargo's end threatened business, the War of 1812 created a new market for Monkton. The company supplied the American government with large numbers of cannon balls as well as iron to join the timbers in constructing frigates.

In 1817 Alger incorporated the South Boston Iron Company in Dorchester, Massachusetts. Through his firm's success, the region became a hub for iron manufacturing.

Alger also devised numerous improvements in the construction of time fuses for bomb shells and grenades. In 1811 he patented a method of making cast-iron chilled rolls, and in 1822 first designed cylinder stoves. Alger served as a member of the city council during the first year of its existence, and was elected alderman in 1824 and 1827.

He died on February 4, 1856, in Boston, Massachusetts. He is buried at the Mount Auburn Cemetery with his family.

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Important facts

Birth century
Nationality
Known for
Columbiad

People in Cyrus Alger's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Cyrus Alger's

Frequently asked questions

Who was Cyrus Alger?

American arms manufacturer and inventor (1782-1856)

When was Cyrus Alger born?

Cyrus Alger was born on 11 November 1782 in West Bridgewater.

When did Cyrus Alger die?

Cyrus Alger died on 4 February 1856 in Boston.

What was Cyrus Alger's occupation?

Cyrus Alger was an engineer and metallurgist.

What was Cyrus Alger known for?

Cyrus Alger was known for Columbiad.

What nationality was Cyrus Alger?

Cyrus Alger was American.

Sources & further reading

· Wikipedia: Cyrus Alger

· Wikidata: Q5201062

· DBpedia: Cyrus Alger

Cite this page

APA: Biography.guide. (2026). Cyrus Alger. https://biography.guide/cyrus-alger/

MLA: "Cyrus Alger." Biography.guide, https://biography.guide/cyrus-alger/.

Chicago: "Cyrus Alger." Biography.guide. https://biography.guide/cyrus-alger/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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