...studies with his accustomed vigor and energy, and on leaving the University, in 1822, was appointed by his elder brother, Josiah S. Johnston, then a member of Congress, from Louisiana, a cadet in the United States Military Academy at West Point. He won the respect and love of professors and class-mates at West Point. Mr. Jefferson Davis says of him at this period of his life: He was Sergeant-Major, and after...