3rd Heavy Artillery Regiment [also called 1st Regulars or Enlisted Men] was organized in December, 1860, with eight companies, later increased to ten. The men were recruited in Charleston, Columbia, and Cheraw, and the counties of Greenville, Lancaster, Chesterfield, and Anderson. The unit trained as infantry and artillery, and served in the Department of South Carolina, Georgia, and Florida. It took an active part in many conflicts in and around Charleston. In September, 1862, the unit contained 628 effectives and during the operations on Morris Island, July 10 to September 6, 1863, it lost 10 killed, 32 wounded, and 22 missing. In January, 1865, it was assigned to Colonel A. Rhett's Brigade and, serving as infantry, was active in the North Carolina Campaign. The unit surrendered on April 26, 1865. Its commanders were Colonels Richard H. Anderson, William Butler, and John Dunovant; Lieutenant Colonels Thomas M. Baker, Barnard E. Bee, Robert De Treville, and John C. Simkins; and Majors Warren Adams and Thomas A. Huguenin.