COCKBURN, SIR GEORGE, (1772-1853), British admiral, second son of Sir James Cockburn, Bart., and uncle of Lord Chief Justice Cockburn, entered the navy in his ninth year. After serving on the home station, and in the East Indies and the Mediterranean, he assisted, as captain of the "Minerve" at the blockade of Leghorn in 1796, and fought a gallant action with the Spanish frigate "Sabina," which he took. He was present at the battle of Cape St. Vincent. In 1809, in command of the naval force on shore, he contributed greatly to the reduction of Marti nique, and signed the capitulation by which that island was handed over to Great Britain. After service in the Scheldt and at the de fence of Cadiz he was sent in 181r on an unsuccessful mission for the reconciliation of Spain and her American colonies. In 1813-14, as second in command to Warren, he took part in the American War, especially in the capture of Washington. In the autumn of 1815 he carried out, in the "Northumberland," the sentence of deportation to St. Helena which had been passed upon Bonaparte. He was promoted admiral in 1837; he became senior naval lord in 1841, and held office in that capacity till 1846. In 1851 he was made admiral of the fleet. He died on Aug. 19,