Hill’s father, who sat for Down in the Irish Parliament until he succeeded as 2nd marquess of Downshire in 1793, was a staunch opponent of the Union and committed suicide in 1801.
Hill was not a thick and thin attender, but in the first four sessions of the 1820 Parliament he divided with the Whig opposition to the Liverpool ministry on most major issues and voted regularly for reduced expenditure and taxation. He divided to make Leeds a scot and lot, not a £10 householder borough on the disfranchisement of Grampound, 2 Mar., and for parliamentary reform, 25 Apr. 1822, 24 Apr. 1823. He voted for Catholic relief, 28 Feb. 1821, and against the Irish habeas corpus suspension, 7 Feb., and insurrection bills, 8 Feb., 8 July 1822. He paired for the forgery punishment mitigation bill, 23 May 1821. He voted for inquiries into Irish tithes, 19 June 1822, the legal proceedings against the Dublin Orange rioters, 22 Apr., and the state of Ireland, 12 May 1823. He divided for inquiries into the Irish church establishment, 6 May, and the state of Ireland, 11 May 1824, and to secure the proper use of Irish first fruits revenues, 25 May 1824, his only known votes that year. He attended to vote against the Irish unlawful societies bill, 15, 18, 21, 25 Feb., and for Catholic relief, 1 Mar., 21 Apr., 10 May 1825. He presented petitions from Downpatrick in favour of the Catholics, 3 Mar., from Newry against alteration of the corn laws, 29 Apr. 1825, and from Bandon and elsewhere to abolish slavery, 8 May 1826.
In February 1825 the Rev. Mark Cassidy, one of Lord Londonderry’s supporters, remarked that the brother of the unpopular but powerful Downshire ‘is not much known, personally rather liked than disliked, but not respected; the general opinion is that he would fill the character of nobody as well as of the Member of the county Down’.
Hill was involved in a severe contest in Down at the general election of 1830, when Forde’s independent candidacy threatened to displace him. On the hustings he defended the government’s record, especially on emancipation, refused to commit himself on reform and denied collusion with Castlereagh, now a junior minister. He trailed behind Forde until the sixth day of the poll, but finished narrowly in second place and in his address of thanks attacked the Down Independent Club for having misled many freeholders.
Hill divided for the second reading of the reintroduced reform bill, 6 July, and the disfranchisement of Appleby, 19 July, and St. Germans, 26 July 1831. Thereafter he was apparently absent, but he paired for the partial disfranchisement of Dorchester, 28 July, and the enfranchisement of Greenwich, 3 Aug., and Gateshead, 5 Aug. Nothing came of speculation that he would get a coronation peerage in September.
