Buxton’s father, a Norfolk country gentleman and staunch Pittite, was Member for Thetford, 1790-96, and in 1797 came in for Great Bedwyn on the nomination of his Wiltshire neighbour, the 1st earl of Ailesbury. He, who received a baronetcy in 1800 and retired from the House in 1806, reported to Ailesbury, 5 Apr. 1809, that John had been burnt out of his rooms at Christ Church by a fire, but had left the university with his orthodox religious and political principles unweakened. He added that his son, to whom he had refused permission to travel on the continent because of the war, did not wish to study law.
Writing to Buxton in January 1820, George Lucy* expressed the hope ‘that you will have health and spirits enough to resume your duties’ in Parliament, ‘like a good and attentive senator’.
Buxton again voted against Catholic relief, 6 Mar., and divided against the second reading of the corn bill, 2 Apr. 1827. He sided with the largely Whig minority against throwing the borough of East Retford into the hundred of Bassetlaw, 21 Mar. 1828. He registered another anti-Catholic vote, 12 May 1828, and although Planta, the Wellington ministry’s patronage secretary, thought it likely that he would vote ‘with government’, he divided against emancipation, 6, 18, 30 Mar. 1829. He voted for Knatchbull’s amendment to the address on distress, 4 Feb. 1830, and sided with opposition in its campaign for economies in the admiralty and ordnance departments, 12, 22, 29 Mar. He voted against Jewish emancipation, 5 Apr. On the ministerial list compiled after the general election, he was placed among the ‘moderate Ultras’ and, although ‘friend’ was noted against his name, he was absent from the division on the civil list, 15 Nov. 1830. He voted against the second reading of the Grey ministry’s reform bill, 22 Mar., and for Gascoyne’s wrecking amendment, 19 Apr. 1831. He divided against the second reading of the reintroduced bill, 6 July, for using the 1831 census to determine the boroughs in the disfranchisement schedules, 19 July, and against the passage of the bill, 21 Sept. He voted against the second reading of the revised bill, 17 Dec. 1831, the enfranchisement of Tower Hamlets, 28 Feb. 1832, and the third reading, 22 Mar. His only other known votes were against ministers for inquiry into distress in the glove trade, 31 Jan., and against the Russian-Dutch loan, 12 July 1832.
A founder member of the Carlton Club in March 1832, his seat was abolished by the Reform Act and he left the House at the dissolution that year. He succeeded his father in 1839 and died, after a long illness, in October 1842. According to his obituary, he was ‘endeared to his family and friends by his affectionate and amiable disposition, generally esteemed for his strict integrity, sincerity and suavity of manner, and beloved by his tenantry for his invariable kindness and liberality’.
