New Haven, Connecticut, December 22, 1803, and served in the Mexican War and in the Engineer Corps. From May, 1861, to March, 1862, he had charge of the Department of Washington, and as brigadier-general of volunteers commanded the District of Suffolk of the Seventh Army Corps, and captured the town of Norfolk in May. As major-general of volunteers, he was put at the head of the newly formed Twelfth Army Corps on September 12, 1862, and was mortally wounded at Antietam, on the 17th.
Saybrook, Connecticut, September 10, 1810, was graduated from Yale College, and held various political positions in Detroit where he also practised law. As colonel of a Michigan regiment, when the Civil War broke out, he was made brigadier-general of volunteers and headed a brigade in the Department of Pennsylvania. Passing through the various organizations of the Army of the Potomac, he was given a division in the Fifth Corps, which became the Second Corps, Army of Virginia, and the Twelfth Corps, Army of the Potomac, and finally was merged in the Twentieth Corps, Army of the Cumberland. Williams was the only general to lead the same division through the whole of the war, although at various times he temporarily headed the corps in which he was placed. He was corps commander at Antietam, after Mansfield fell; at Gettysburg, and also on the march to the sea and in the campaign through the Carolinas. His brevet of major-general of volunteers for marked ability and energy, was dated January 12, 1865, and a year later he was mustered out of the service. After the war, he was United States minister to San Salvador (1866-69), and member of Congress from 1874 until his death, which occurred in Washington, December 21, 1878.
Thirteenth Army CorpsOn October 24, 1862, the troops in the newly created Department of the Tennessee, under Major-General Grant, were designated the Thirteenth Army Corps, and Major-General W. T. Sherman was put in command. The troops were scattered in many districts. Sherman organized four of the divisions into the Yazoo Expedition, and started on the campaign that ended in failure at Chickasaw Bluffs, December 29, 1862. On December 18th, the corps was subdivided, and the Army of the Tennessee now consisted of the Thirteenth, Fifteenth, Sixteenth, and Seventeenth corps. Brigadier-General Morgan succeeded Sherman, who commanded the whole department, at the head of the new Thirteenth Army Corps. The corps went with Major-General McClernand (January 4-12, 1863) on the expedition to Arkansas Post, the expedition being known as McClernard's Army of the Mississippi, in which the Thirteenth Corps became the First Corps for that period. Following Morgan, the commanders of the Thirteenth Corps were Major-Generals J. A. McClernand, E. O. C. Ord (who succeeded when McClernand was relieved at Vicksburg), and C. C. Washburn. One division fought the battle of Helena (July 4, 1863), and the battle of Port Gibson (May 1, 1863) was fought almost entirely by it. After Vicksburg, the corps invested Jackson, and on August 7th it was transferred to the Army of the Gulf, where its chief active service (two divisions) took place in the Red River campaign of 1864. New commanders of the corps while in the Army of the Gulf were Major-General N. J. T. Dana, and Brigadier-Generals T. E. G. Ransom, R. A. Cameron, M. K. Lawler, and W. P. Benton. On June 11, 1864, the troops of the corps were transferred to other commands, but they were largely brought together again for the Reserve Corps, Army of the Gulf, in December, 1864, out of which on February 18, 1865, a new Thirteenth Army Corps was created, which, under command of General Gordon Granger, took part in the capture of Mobile, in April, 1865. The corps was discontinued at Galveston, Texas, July 20, 1865.
Morgan was born in Washington County, Pennsylvania, September 20, 1820. He did not graduate from West Point, which he entered in 1841, but took up the practice of law in Mount Vernon, Ohio. But he went to the Mexican War and was brevetted brigadier-general. Entering the diplomatic service, he was consul at Marseilles and minister to Portugal. When the Civil War broke