Cooper was descended from a Nottinghamshire family, his grandfather Benjamin having been born at Southwell in about 1706 and serving as rector of Kilvington, 1729-30, and of North Scarle, Lincolnshire, 1730-41. His mother was descended from the Dymoke family of Scrivelsby, Lincolnshire. He entered the medical profession and was described, at the time of his second marriage in 1797, as a ‘doctor of medicine’ of Stamford, Lincolnshire.
He divided against Catholic relief, 21 Apr., 10 May, and the Irish franchise bill, 26 Apr., 9 May 1825. He voted with Lord Liverpool’s ministry for the duke of Cumberland’s annuity, 30 May, 6, 10 June 1825. No trace of parliamentary activity has been found for the 1826 session. At the general election that summer he was again returned quietly for Dartmouth, after denouncing attempts to promote Catholic claims as ‘an infringement on the great bulwark of our constitution’.
