Names
- Siebert, Wilbur Henry, 1866-1961.1
- Sioussat, St. George L. (St. George Leakin), 1878-1960.1
- Slosson, Edwin Emery, 1865-1929.1
- Slosson, Preston W. (Preston William), 1892-1
- Slosson, Preston W. (Preston William), 1892-1984.1
- Smith, Shirley Wheeler, 1875-1959.1
- Smith, William Alden, 1859-1932.1
- Spaulding, Mr. (Oliver Lyman), 1833-1922.1
- Stephenson, Wendell Holmes, 1899-1970.1
- Stone, Ralph, 1868-1956.1
- Sweet, William Warren, 1881-1959.1
- Swinton, Roy Stanley, 1886-1
- Tarbell, Ida M. (Ida Minerva), 1857-1944.1
- Tatlock, John S. P. (John Strong Perry), 1876-1948.1
- Teggart, Frederick John, 1870-1946.1
- Thayer, William Roscoe, 1859-1923.1
- Thompson, James Westfall, 1869-1941.1
- Thwaites, Reuben Gold, 1853-1913.1
- Trevelyan, George Macaulay, 1876-1962.1
- Trevelyan, George Otto, Sir, bart., 1838-1928.1