- Poincare_, Raymond, 1860-1934.1
- Political parties.1
- Politicians.1
- R.38/ZR-2 (Airship)1
- Roosevelt, Franklin D. (Franklin Delano), 1882-1945.1
- Sailors.1
- San Juan Hill, Battle of, Cuba, 1898--History.1
- Seaplanes.1
- Ships.1
- Sigsbee, Charles D. (Charles Dwight), 1845-1923.1
- Soldiers--United States.1
- Soldiers.1
- Spanish-American War, 1898--Influence.1
- Spreckels, John Diedrich, 1853-1
- Star-spangled banner (Song)1
- Sun, Yat-sen, 1866-1925.1
- Torriente, Cosme de la, 1872-1
- Tourists.1
- Traffic flow.1
- Trenchard, Hugh Montague, 1873-1956.1