HAMILTON, Charles Smith, soldier, born in New York, 16 November, 1822. He was graduated at the United States military academy in 1843, and assigned to the infantry. He served with honor in the war with Mexico, was brevetted captain for gallantry in the battles of Contreras and Churubusco, and was severely wounded at Molino del Rey. He was afterward on frontier duty till April, 1853, when he resigned and engaged in farming in Fond du Lac, Wisconsin. At the beginning of the civil war he was appointed, 11 May, 1861, colonel of the 3d Wisconsin regiment, and was promoted to brigadier-general of volunteers six days later, he served in Virginia during the siege of Yorktown in May, 1862, and on 19 September of that year was promoted to major-general of volunteers. After the siege of Yorktown he was transferred to the Army of the Mississippi, commanded a division at Corinth, and won the battle of Iuka. Afterward he commanded the left wing of the Army of the Tennessee, and of the 16th corps, he resigned his military commission in April, 1863, and engaged in manufacturing at Fond du Lac, Wisconsin, but subsequently removed to Milwaukee. General Hamilton was president of the board of regents of the University of Wisconsin from 1866 till 1875, and United States marshal for the district of Wisconsin from the year 1869 till 1877.