- Schröder, Paul, 1873-1941, author1
- Scotson-Clark, G. F. (George Frederick), 1872-1927, author1
- Scripture, E. W. (Edward Wheeler), 1864-1945, author1
- Shaftesbury, Edmund, 1852-1926, author1
- Sherwell, Samuel, 1841-1927, author1
- Shukle, R. M. (Revashanker Meganlal), 1883- author1
- Simon, William, 1844-1916, author1
- Skillern, Ross Hall, 1875- author1
- Slade, Charles B. (Charles Blount), 1874-1942, author1
- Sluder, Greenfield, 1865-1928, author1
- Smith, H. Carlton (Henry Carlton), 1866- author3
- Smith, Rachel M., author3
- Souza Do O', J. de (João de), author1
- Spangler, Paul, 1899-1994, author1
- Steidl, John, author1
- Steindler, Arthur, 1878-1959, author1
- Stevens, Arthur A. (Arthur Albert), 1865- author2
- Stillman, Ralph G. (Ralph Griffiths), 1882-1950, author1
- Stoddard, Cora F. (Cora Frances), 1872-1936, author1
- Stokes, John H. (John Hinchman), 1885-1961, author1