At Lincoln, in 1754, Chaplin had the support of Lord Scarbrough and the Rutland family, and was returned in a warmly contested election. In Dupplin’s list of 1754 he was classed as a Government supporter.
On 13 Jan. 1761 Thomas Thoroton wrote to Lord Granby:1HMC Rutland, ii. 239.
Mr. Chaplin declines [to stand for Lincoln] and Lord Scarbrough brings in Mr. Sibthorp in his place. Chaplin goes to Stamford.
There he was returned unopposed on the interest of his brother-in-law, Brownlow, 9th Earl of Exeter. In 1761 he was sent Newcastle’s parliamentary whip through the Duke of Ancaster. In Bute’s list the names of Lords Exeter and Granby are written against him; he voted for the peace preliminaries, 1 Dec. 1762, and on 10 Dec. 1762 spoke for them.2Newcastle’s ‘Memorandums’, 11 Dec. 1762, Add. 33000, ff. 223-4, and Harris’s ‘Debates’. After that he presumably voted on the Government side. He never appears either as voting with the Opposition or as absent.
He died 31 May 1764.