Beresford, an army officer, was a member of the foremost Irish Protestant family. His father was the second son of William Beresford (1743-1819), archbishop of Tuam, who was created Baron Decies in 1812. His great-uncle George, 1st marquess of Waterford, had two illegitimate sons, William Carr Beresford†, created Lord Beresford in 1814, and Sir John Poo Beresford*, both of whom influenced the course of his career. Although he later claimed that he had never had any political aspirations, he interrupted his military career in 1824 to fill the vacancy at Northallerton occasioned by the death of its joint-patron, Henry Peirse, whose daughter Henrietta was married to Sir John Beresford; Lord Beresford apparently pressed his reluctant kinsman to take the seat in order to further his own political ambitions.
In the House, Beresford followed his family’s Tory line. He divided for the Irish unlawful societies bill, 20 Feb., and against Catholic relief, 1 Mar., 21 Apr., 10 May 1825. He voted for the financial provision for the duke of Cumberland, 6, 10 June 1825. He again divided with Lord Liverpool’s ministry against the motion condemning the Jamaican slave trials, 2 Mar. 1826. At the general election that summer he made way for Sir John Beresford at Northallerton and stood for Berwick, where his family had recently established an interest. He was inconvenienced by the intervention of another professed ministerialist, despite attempts by the home secretary Peel and the patronage secretary Lushington to clear his path. Nevertheless, he headed the poll after pledging support for the abolition of slavery and unspecified measures to promote the ‘prosperity and stability’ of the agricultural and commercial interests. In returning thanks, he declared that he belonged to ‘a family which has from principle voted against granting any further concessions to the Roman Catholics’, which he believed would be ‘fraught with danger to our happy constitution’.
The ministry regarded him as one of their ‘friends’, and he duly voted with them in the crucial division on the civil list, 15 Nov. 1830. Four days earlier he had denied Daniel O’Connell’s allegations that Lord Beresford was turning the poor off his Irish estates to make way for cattle. On 17 Mar. 1831 he presented and concurred in a Berwick corporation petition against details of the Grey ministry’s reform bill, warning that it would disfranchise many of the present electors. He divided against the bill’s second reading, 22 Mar. He presented a hostile petition from Berwick voters resident in London, 19 Apr. 1831, when he voted for Gascoyne’s wrecking amendment. At the ensuing general election it was reported that there had been ‘a sad declension’ in his popularity at Berwick owing to his opposition to reform, but he was returned in second place after a token contest.
Beresford resumed his military career and served for five years as military secretary to the Indian commander-in-chief. In 1842, having published six anonymous letters in The Times criticizing the policy of the former governor-general of India, Lord Auckland, he sought to be appointed as secretary to his successor Lord Ellenborough, but was disappointed.
my lot has been a sad failure in life, and not through any misconduct (as I hope) or any want of exertion of my own. I was taken from my profession early in life by Lord Beresford for his political objects, and with an assurance of being fully provided for ... [but] for an assigned reason, after he married my own aunt, I was cast off and am now scarcely acknowledged. For eleven of the best years of my life I was the jealous attendant of the party you are now the head of.
He claimed that he had only £600 per annum with which to raise his family.
