Anderson Pelham entered Parliament soon after his return from Paris, where he had been taken ill after a continental tour.
In 1807, though rumoured to lack the nerves and money for a contest, he successfully offered himself for Lincolnshire as a friend of the outgoing ministry. He was also returned for Grimsby, but unseated on petition. In that Parliament the Whigs regarded him as one of their ‘thick and thin’ supporters. At the time they claimed this (March 1810), it had been true; he had also joined the ‘Mountain’ in supporting Folkestone’s motion for an inquiry into abuses, 17 Apr. 1809 and Madocks’s alleging ministerial corruption, 11 May 1810. From February 1810 his attendance, though not his loyalty, became questionable. He voted for sinecure and parliamentary reform, 17, 21 May 1810, but took a month’s leave of absence for illness on 1 Jan. 1811 and is not known to have attended for the rest of the session. In 1812 he supported opposition to the orders in council, 3 Mar., voted for Catholic relief (as also in 1808), 24 Apr., the sinecure regulation bill, 4 May, Stuart Wortley’s motion for a stronger government, 21 May, and opposed the leather tax, 26 June.
In the session of 1813 Anderson Pelham’s only surviving vote was against the vice-chancellor bill, 11 Feb.: he was absent, favourable, on the Catholic question. In May 1815 he resumed voting, regularly supporting retrenchment. His only known speech before 1820 was in favour of the county petition against the property tax which he and others presented on 18 Mar. 1816, though it was disparaged by Sir Robert Heron, a more advanced Whig, as a Tory rather than a Whig concoction.
Anderson Pelham was sorely tried in the county election of 1818 when Sir Robert Heron offered his concurrence and nearly upset the applecart. His decision to remain neutral confirmed Heron’s contention that he was an ambivalent Whig, and as he was, even on the hustings, a ‘very bad’ speaker, much ill feeling was created.
