He entered the Military Academy of West Point at the age of eighteen, where he worked hard, became adjutant of the cadet corps, and finally graduated at the head of his class. There he mastered the theory of war and studied the campaigns of the great masters in that most ancient of all sciences. Whatever he did, even as a boy, he did thoroughly, with order and method. Even at this early age he was the model Christian gentleman in thought, word, and deed; careful and exact in the obedience he rendered his superiors, but remarkable for that dignity of deportment which all through his career struck strangers with admiring respect. He left West Point when twenty-two, having gained its highest honors, and at once obtained a commission in the engineers. Two years afterward he married the granddaughter and heiress of Mrs. Custis, whose second husband had been General Washington, but by whom she left no children. It was a great match for a poor subaltern officer, as his wife was heiress to a very extensive property and to a large number of slaves. She was clever, very well educated, and a general favorite; he was handsome, tall, well made, with a graceful figure, and a good rider; his manners were at once easy and captivating. These young people had long known one another, and each was the other's first love. She brought with her as part of her fortune General Washington's beautiful property of Arlington, situated on the picturesque wooded heights that overhang the Potomac River, opposite the capital to which the great Washington had given his name. In talking to me of the Northern troops, whose conduct in Virginia was then denounced by every local paper, no bitter expression passed his lips, but tears filled his eyes as he referred to the destruction of his place, that had been the cherished home of the father of the United States. He could forgive their cutting down his trees, their wanton conversion of his pleasure-grounds into a graveyard, but he could never forget their reckless plunder of all the camp equipment and other relics of General Washington that Arlington House had contained.