Anthony Duncombe inherited Barford as a minor from his uncle Sir Charles Duncombe, M.P., a wealthy London goldsmith, together with a number of burgages in the neighbouring borough of Downton, which he increased by further purchases till he had gained complete control of the borough. On returning from his travels in 1721 he entered Parliament for Salisbury, where he also maintained an interest, continuing to represent it till 1734, when he transferred to Downton. In Parliament he steadily supported Walpole. On 12 Feb. 1730, recording a conversation with him about the forthcoming critical debate on Dunkirk, the 1st Lord Egmont observed: ‘I knew his attachment to the ministry and believed it probable that Mr. [Horace] Walpole had sent him to sound me’.
I think I have a claim if having chose, I believe I may say without vanity, ... more Members at my own expense than almost any private man without advantage either to myself or them, nor have I shown from perhaps the greatest neglects, which is difficult to divest oneself from, any resentment to the measures either by their or my own behaviour.
Add. 35594, f. 234.
He died 18 June 1763.
