About John Brennan
Lived 1765 – 1830 (aged 64–65). John Brennan was a physician and classical scholar.
John Brennan was born at Ballahide, County Carlow, about 1768 and died in Dublin on 29 July 1830. The Compendium of Irish Biography says of him:
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Important facts
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped John Brennan's
Frequently asked questions
Who was John Brennan?
Medical doctor
When was John Brennan born?
John Brennan was born in 1765.
When did John Brennan die?
John Brennan died on 19 July 1830.
What was John Brennan's occupation?
John Brennan was a physician and classical scholar.
Sources & further reading
· DBpedia: John Brennan (doctor)
Cite this page
APA: Biography.guide. (2026). John Brennan. https://biography.guide/john-brennan-physician/
MLA: "John Brennan." Biography.guide, https://biography.guide/john-brennan-physician/.
Chicago: "John Brennan." Biography.guide. https://biography.guide/john-brennan-physician/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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