William Sloper’s father, an old Whig, represented Great Bedwyn 1715-22 and 1729-41. Young Sloper attached himself to Henry Fox; and when Fox became secretary of state in October 1755 Sloper was one of the five Members for whom he asked places. In a plan of a new ministry, drawn up by Fox on 1 Nov. 1756, Sloper was set down for a seat at the Board of Trade. ‘Give me leave to add’, Fox wrote in his covering letter to the Duke of Devonshire,
In 1758 Sloper had been willing to exchange his place for the sinecure of deputy paymaster at Gibraltar, incompatible with a seat in Parliament, held by John Roberts; and this was effected in October 1761.
Sloper died July 1789.
