Mills’s grandfather was a clerk in Chancery. His uncle William Mills, who married the heiress of Sir John Salter, Lord Mayor of London and an East India proprietor, saved the bank of Glyn and Hallifax in the panic of 1772 with £10,000, stipulating that he become a partner with his nephew Charles (who duly became one on coming of age). In 1785, on the retirement of his elder brother William, Charles also became an East India Company director. According to the historian of Glyn Mills Bank, his connexions in the business world and the Mills funds were great assets to the bank in its steady recovery. His nephews, who inherited his wealth, continued the family association with the bank.
Mills, who had strong local connexions, was triumphant on the independent interest at Warwick in 1802, driving his London neighbour, Samuel Robert Gaussen, from the field and attributing his successful canvass to the efforts of the veteran Whig Dr Samuel Parr of Hatton.
Mills’s most significant gesture in the House was his presentation of the East India Company petition for the renewal of its charter (and its commercial monopoly), 7 Apr. 1812, but he played no obvious part in the debate on it next session, his fifth as a member of the select committee on Indian affairs. He voted for the committee on Catholic relief, 2 Mar. 1813, but was neutral by May, and in 1817 was hostile. He joined opposition on the Duke of Cumberland’s establishment bill, 30 June and 3 July 1815. He also opposed the army estimates, 8 Mar. 1816, the property tax, 18 Mar., and the leather tax, 9 May, but supported the civil list, 6 May. He further supported ministers on the composition of the finance committee, 7 Feb. 1817, the suspension of habeas corpus, 23 June, and the employment of informers under it, 5 Mar. 1818. He was in the opposition majority against the ducal marriage grant, 15 Apr. 1818. On 8 May he called for the exemption of his old school from the inquiry into abuse of charitable foundations. His only known votes in the ensuing Parliament were with ministers—on Wyndham Quin’s case, 29 Mar., and against Tierney’s censure motion, 18 May 1819. Mills died 29 Jan. 1826.
