General Sheridan was the leader who relieved the Union cavalry from waste of energy and restored it an arm of the service as effective and terrible to the Confederacy as the Southern cavalry had been to the North at the outset of the war. He was born at Albany, N. Y., 1831, and graduated at West Point in 1853. In May, 1862, he was appointed colonel of the Second Michigan Cavalry, and served in northern Mississippi. In July he was appointed brigadier-general of volunteers and distinguished himself on October 8th at the battle of Perryville. He commanded a division of the Army of the Cumberland at Stone's River, and was appointed major-general of volunteers early in 1863. He took part in the pursuit of General Van Dorn, afterwards aided in the capture of Manchester, Tennessee, on June 27th, and was in the battle of Chickamauga. In the battles around Chattanooga he attracted the attention of General Grant. In April, 1864, he was placed in command of the cavalry corps of the Army of the Potomac, and its brilliant exploits under his leadership culminated in the death of General J. E. B. Stuart at Yellow Tavern, where the Confederates were defeated. In August, 1864, he was placed in command of the Army of the Shenandoah. He defeated General Early at Opequon Creek, Fisher's Hill, and Cedar Creek, and captured 5,000 of his men and several guns. He drove the Confederates from the valley and laid it waste. On September 10th he was made brigadier-general, and in November major-general. In July, 1865, he received the thanks of Congress for his distinguished services. He died at Nonquitt, Mass., on August 5, 1888.