- Scott, Winfield, 1786-18661
- Senn, Nicholas, 1844-1908, author1
- Smart, Charles, 1841-1905 author1
- Smith, Charles Dennison, 1855-1925, author1
- Smith, Joseph R. (Joseph Rowe), 1831-1911 author1
- Soriano, Manuel S.1
- Spain, enacting jurisdiction.1
- Spectator, active 19th century1
- Stevens, Aaron F. (Aaron Fletcher), 1819-18871
- Swinton, William, 1833-18921
- Tucker, John, active 18621
- Turner, Thomas J., 1815-1901, author1
- United States Sanitary Commission.19
- United States Sanitary Commission. Cincinnati Branch.3
- United States Sanitary Commission. Philadelphia Branch. Protective War Claim and Pension Agency.1
- United States. Adjutant-General's Office, author.692
- United States. Adjutant-General's Office.47
- United States. Army. Corps, 13th.3
- United States. Army. Corps, XIX.1
- United States. Army. Department of Texas.5