- Steamboats--History--19th century.1
- Stephens, A. B.--Correspondence.1
- Stephens, Alexander Hamilton, 1812-1883--Public opinion.1
- Submarine warfare--History.1
- Submarines (Ships)--United States--History--19th century.1
- Submarines (Ships)--United States--History.1
- Temple, William G. (William Grenville), 1824-1894--Correspondence.1
- Tennent, Edward Smith.1
- Tennent, William, 1837-1893--Correspondence.1
- Tennessee--History--Civil War, 1861-1865.1
- Thompson, Heber S., b. 18411
- Tindall, J. W., d. 1864--Death and burial.1
- Tinkler, James C.--Correspondence.1
- Todd, George R. C., 1825-19021
- Torpedoes--South Carolina--Charleston Harbor.1
- Trevilian Station, Battle of, Va., 18641
- United States -- History -- Civil War, 1861-1865 -- Personal narratives, Confederate.1
- United States--History--Civil War, 1861-1865--African-American troops.1
- United States--History--Civil War, 1861-1865--Balloons--South Carolina1
- United States--History--Civil War, 1861-1865--Balloons--South Carolina.1