Bunbury was the eldest son of a landowner of ‘independent fortune’ who served as high sheriff of County Carlow in 1760 and sat for the county in the Irish parliament, 1776-8, in the Bagenal interest.
As a resident proprietor of no profession but of ‘vast wealth’ and Conservative opinions, Bunbury came forward at the request of Carlow’s Conservative gentry at a turbulent by-election caused by the death of Thomas Kavanagh in February 1837.
In the House Bunbury behaved largely as an Irish Tory protectionist.
A silent member, Bunbury does not appear to have sat on any select committees, being excused service from election committees on account of his age, or to have introduced any bills.
