With his guarded attitude to change and hostility to the onward march of reform, Sibthorp was widely known in his day.
Sibthorp was the fourth member of his family to represent Lincoln in the House of Commons; none of the others managed Sibthorp’s political longevity, though his great-uncle, Coningsby, was returned on three occasions (1733, 1746 and 1760). The Sibthorps had achieved advancement by marrying into property, evolving from yeoman farmers into gentry. By 1800 the family owned about 11,000 acres of estates in five counties, but based itself principally in Canwick, one-and-a-half miles south of Lincoln.
As MP for Lincoln from 1826 to 1832, Sibthorp aligned himself with a sizeable group of independent gentlemen who were determined to protect the constitution and the interests of landlords and farmers. He was a bitter opponent of Catholic emancipation and the reform bill, protesting that the latter was ‘a heap of nonsense and absurdity’.
Though Sibthorp sometimes sat with the ultra-Tory Sir Robert Inglis in the Commons, he was in truth a loner. No prime minister he encountered could, in his estimation, come up to the standard of William Pitt, though in 1841-2 he did express admiration for Peel.
Sibthorp again topped the poll at Lincoln in 1847. He was soon berating the new Whig ministers, declaring that ‘worse they could not get’.
Sibthorp also made clear his horror of the new railways. He insisted that railways were dangerous and argued that dependants of those killed in accidents should be properly compensated. He feared that railways were ruining people financially, and refused to follow the example of one of his brothers who bought shares in a railway company. Above all, Sibthorp objected to the acquisition of land by railway companies, which amounted, in his eyes, to a direct attack on private property.
Sibthorp reached the zenith of his notoriety in 1850-1 when he made a series of heated speeches in opposition to the Great Exhibition. Still ardently protectionist, he saw the Great Exhibition as a threat to British industry, arguing that it ‘would … encourage the foreigner to send his cheap and nasty goods where they were not wanted’, 30 Apr. 1850. Sibthorp put as many obstacles as he could in the path of the organizers. He protested when elm trees were felled in Hyde Park, supported a petition from residents who lived near the park who feared their property would depreciate in value, and warned that crime would increase.
Sibthorp was returned for the eighth and final time as MP for Lincoln in July 1852. His parliamentary career did not end quietly and he kept up his attacks on Roman Catholicism, foreigners and radicals until he became ill in the summer of 1855. He tried to restore his health in Brighton, but died at his house in Eaton Square, London, on 14 December 1855.
