Bouverie was returned for Salisbury on his family interest. In Parliament he seems to have followed an independent line. He was classed by Jenkinson in the autumn of 1763 as ‘pro’; but voted with the Opposition on Wilkes, 15 Nov. 1763, and on general warrants, 15 and 18 Feb. 1764, and was listed by Newcastle, 10 May 1764 as a ‘sure friend’. Rockingham classed him as ‘pro’, July 1765, and as ‘Whig’, November 1766; but Townshend put him down as ‘Government’, January 1767, and Newcastle, 2 Mar. 1767 as ‘Tory’. No other vote by him is reported for this Parliament. In the next he voted with Administration on the expulsion of Wilkes, 3 Feb. 1769, and the Middlesex election, 15 Apr. and 8 May 1769, but with Opposition on the Spanish convention, 13 Feb. 1771. There is no record of his having spoken in the House during this period. In 1771 he resigned his seat in favour of his nephew Jacob Bouverie, Viscount Folkestone, now of age.
At the general election of 1774 Bouverie offered himself at Northampton, hoping for the support of the Compton interest, but withdrew without making a canvass.
He died 3 Sept. 1810.
