Fetherston’s family were one of the Irish branches of the Sussex family of Fetherstonhaugh and had an estate worth about £7,000 p.a. in county Longford. His father, best remembered as the model for Mr Hardcastle in Goldsmith’s She Stoops to Conquer, was Member for the county and for St. Johnstown. Fetherston entered the Irish parliament for the latter, Lord Granard’s borough, but in 1796 came in for the county on the leading interest of Lord Oxmantown. He was inclined to support the Union, but opposed it in deference to Oxmantown’s and county opinion, a step the viceroy found ‘very unpleasant’.
At Westminster, Fetherston, frequently described as Oxmantown’s Member, could be counted on to give a silent support to government, from whom he hoped for provision, being the owner of the lands at Ballinamuck where the French were defeated, ‘and his estate as he says suffered much’.
Subsequently Fetherston was not a regular attender. He was in Ireland in March 1803 and, while listed a supporter of Pitt’s second ministry in December 1804, he gave no positive answer as to attendance, ‘but will in all probability attend’.
Fetherston’s patron being promoted to the earldom of Rosse by the Grenville ministry in 1806, he supported them. Their chief secretary reported, 11 June 1806, that he believed Fetherston would ‘give his attendance for the rest of the session’ and so he did.
Fetherston was in the government majorities of 30 Mar. 1810 on the Scheldt inquiry and 16 Apr. against the release of Gale Jones the radical. He voted against parliamentary reform, 21 May, and against the Catholic claims, 1 June 1810. He was in Ireland during the Regency debates. On 22 June 1812, 2 Mar., 11 and 24 May 1813 he voted against Catholic relief. He had served on the Weymouth election committee in February and arrived in town just in time for the last Catholic division.
