About John Caleff
Lived 1726 – 1812 (aged 86). John Caleff was a surgeon.
John Caleff (30 August 1726 – 23 October 1812 ) was a surgeon, member of Massachusetts House of Representatives, and later United Empire Loyalist. In 1745, he was captured as part of the Siege of Louisbourg.
He was a founder of the New Ireland crown colony.
In 1774, a mob formed which demanded that Caleff issue a formal confession for his loyalist actions.
His former home, known now as the Dr. John Calef House, is located in Ipswich, Massachusetts. He moved to Saint Andrews, New Brunswick in 1791 and died there in 1812.
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Important facts
Contemporaries
People whose lives overlapped John Caleff's
Frequently asked questions
Who was John Caleff?
United Empire Loyalist
When was John Caleff born?
John Caleff was born on 30 August 1726 in Ipswich.
When did John Caleff die?
John Caleff died on 23 October 1812 in St. Andrews.
What was John Caleff's occupation?
John Caleff was a surgeon.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John Caleff. https://biography.guide/john-caleff/
MLA: "John Caleff." Biography.guide, https://biography.guide/john-caleff/.
Chicago: "John Caleff." Biography.guide. https://biography.guide/john-caleff/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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