 The government decided to clear up ownership of the post; in 1801, the government paid $664.20 for the 27 acres (110,000 m²) which it had been renting from William Penn's heirs.In 1838 the School of Cavalry Practice was established at Carlisle Barracks.It was the army's small but elite mounted force, the forerunner of the Armor School now at Fort Benning, Georgia.