John Brennan was born at Ballahide,

County Carlow County Carlow ( ; ) is a Counties of Ireland, county located in the Southern Region, Ireland, Southern Region of Ireland, within the Provinces of Ireland, province of Leinster. Carlow is the List of Irish counties by area, second smallest and t ...

, about 1768 and died in

Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...

on 29 July 1830. The ''Compendium of Irish Biography'' (1878) says of him:

External links

* http://www.libraryireland.com/biography/JohnBrennan.php 1760s births 1830 deaths 18th-century Irish medical doctors 19th-century Irish medical doctors Health professionals from County Carlow Medical doctors from Dublin (city) Irish classical scholars Irish editors {{Classical-scholar-stub