By 1751 Vernon was closely connected with the Duke of Bedford: about that time there is hardly a letter from Rigby to the Duke in which ‘Dick’ is not mentioned. In 1752 Horace Walpole described him (to Mann, 2 Feb.) as ‘a very inoffensive young fellow, who lives in the strongest intimacy with all fashionable young men’; and Rigby as one who ‘must necessarily be in love with somebody’.
At the general election of 1754 Vernon unsuccessfully contested Camelford on the Bedford interest; but in December was returned for Tavistock by the Duke, who on 28 Jan. 1755 wrote to Charles Hanbury Williams:
In 1761 Vernon was returned after a contest on the Duke’s interest at Bedford. And next, during the removals of November 1762, Vernon applied to Bedford, then in Paris, to obtain for him some employment;
Vernon left office with Bedford; was listed as an opponent by Rockingham; and voted against the repeal of the Stamp Act. During the abortive negotiations of November-December 1766 for the entry of the Bedfords into the Chatham Administration, the Duke stipulated that Vernon should ‘have a proper office, in due time’;
At the general election of March 1768 he was re-elected at Bedford after another contest; and in the new Parliament is found voting with the Government in six out of the seven divisions for which lists of their side are extant. In 1774 he was moved to the safer Bedford seat at Okehampton. His attendance in this Parliament is poorer: he was listed as ‘pro, absent’ over the contractors bill, 12 Feb. 1779; voted with the Government on Keppel, 3 Mar. 1779; but appears in only two of the five crucial divisions, February-April 1780. The Public Ledger wrote about him in 1779: ‘one of the Bedford party, whose main principle he adopts, viz. that of self-interest.’ And the English Chronicle in 1781:
He is ... not distinguished either for splendour or deficiency of talents, but with a perfect mediocrity of intellectual endowments enjoys his place, breeds his horses, contrives matches, which he is said to do with more skill and success than any man on the turf, and gives a silent vote to the minister.
He was paired on the Administration side in the four divisions 20, 22, and 27 Feb. 1782, and 8 Mar., but was absent from the decisive division of 15 Mar. On the 20th, the day North resigned, Robinson, writing to Jenkinson at 6.30 a.m., included Vernon among the ‘pro’s it is hoped may be got to-day’.
In 1783 Lord Gower drew away from North; and Vernon, who followed his brother-in-law, voted on 18th Feb. for Shelburne’s peace preliminaries; he did not vote on Fox’s East India bill; but next was listed by all the political managers as an adherent of Pitt; and presumably for that reason moved in 1784 from a Bedford to a Gower borough. He apparently was not given office—perhaps he did not care for it any longer: ‘by means of betting and breeding horses Vernon is stated to have converted “a slender patrimony of £3,000 into a fortune of £100,000 before quitting the turf as an owner”.’
He died 16 Sept. 1800.
