Kentucky in 1819. Entering the army, he served in the Seminole and Mexican wars. When the Civil War broke out, he served first as colonel in New Mexico, held that territory for the Union, and prevented a Confederate invasion of California. Then, for some time, he was on special duty in the North and East. In May, 1864, with the rank of majorgeneral of volunteers, he assumed command of the Military Division of West Mississippi. He captured Mobile, April 12, 1865, and the following month arranged for the surrender of the Confederate forces in the Trans-Mississippi Department. June 3, 1865, he succeeded to the command of the Army and Department of the Gulf. After the close of the war he was made brigadier-general in the regular army, and was put in command of the Department of the Columbia. While engaged in attempting to settle difficulties between the Government and the Modoc Indians, he was treacherously murdered by their chief, April 11, 1873.
Mexican War and on the Southwestern frontier. When the Civil War broke out, he was made captain and rose through successive grades until his appointment of major-general of volunteers was dated September 17, 1862. He fought at Wilson's Creek, and later commanded the cavalry and had a brigade in the Army of the Mississippi. Then he had charge of the so-called Army of Kentucky, from August to October, 1862, and served in the Department of the Ohio until put in charge of the newly organized Reserve Corps of the Army of the Cumberland. At Chickamauga, he rendered most timely assistance to Thomas and won a brevet of lieutenant-colonel in the regular army. He was the first commander of the new Fourth Corps until April, 1864, when he was sent to command the district of South Alabama, the troops of which were merged in the Reserve Corps, Department of the Gulf (afterward called New Thirteenth Army Corps) of which Granger took command in January, 1865. He commanded the land forces at the fall of Forts Morgan and Gaines (August, 1864), and in the operations around Mobile that resulted in its capture, April, 1865. After the war, Major-General Granger was mustered out of the volunteer service and received the commission of colonel in the regular army. He was brevetted major-general in March, 1865. He died in Santa Fe, New Mexico, January 10, 1876.
Army of Georgia: the Fourteenth and Twentieth Army Corps.The fourteenth and twentieth Army Corpsxs on the march to the sea and through the Carolinas (November 1864–April 1865) were so known. This force was commanded by Major-General Henry W. Slocum, and constituted the left wing of Sherman's army.
Delphi, New York, September 24, 1827, and, beginning the practice of law at Syracuse, New York, he resigned his commission as first lieutenant in 1855. At the outbreak of the Civil War, he joined McDowell's troops as colonel of the Twenty-seventh New York Volunteers, and at Bull Run was severely wounded. In August, 1861, as brigadier-general of volunteers, he commanded a brigade of Franklin's Division of the Army of the Potomac, and later had a division in the Sixth Corps. At Gaines' Mill and Glendale, General Slocum took a prominent part, and after the battle of Malvern Hill he was promoted. As major-general of volunteers, he was given the Twelfth Corps in October, 1862. He fought with the armies of the Potomac and of Virginia, and was sent by Major-General Meade to command the army on the first day of Gettysburg. He went West with his corps, and was commanding at Tullahoma during the battle of Chattanooga. For short periods, in 1864 and 1865, he had charge of the District of Vicksburg. In the Atlanta campaign, he was in command of the Twentieth Corps and during the march to the sea and the Georgia and Carolina campaigns, he was at the head of the Army of Georgia, which formed the left wing of General Sherman's army. At the battle of Bentonville, North Carolina, General Slocum repulsed Johnston's attack, and later was present at the surrender of the Confederate Army. He resigned his commission in 1865, and devoted himself to the law. He died in Brooklyn, New York, April 14, 1894.