Library of Congress: ‘Civil War Glass Negatives and Related Prints’
Library of Congress: ‘Civil War Maps & Collection Items’
H.L. Hunley submarine: The Civil War
Tour Civil War Charleston in One Day (Battlefield Trust)
Battle Map – Charleston, S.C. – April 1861 (Battlefield Trust)
Explore the History of the Civil War at These 10 SC Sites (DiscoverSouthCarolina.com)
‘Charleston in the American Civil War’ (Wikipedia)