
Born: May 23, 1754, Belfast, Northern Ireland.
Died: February 5, 1820, Knock, County Mayo, Ireland.
Buried: Clifton Street Cemetery, Belfast, Northern Ireland.
Drennan’s surname is an Anglicization of the Irish clan name Ó Draighnáin.
He was educated at the University of Glasgow, Scotland (MA 1771, MD 1778), and practiced medicine in Belfast.
At one time he edited the Belfast Monthly Magazine.
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