Names
- Ramos, Joaquín.1
- Robbins, Frank, 1846-1924.1
- Rockefeller, John D., III (John Davison), 1906-1978--Portraits.1
- Roebling, John A. (John Augustus), 1806-1869--Portraits.1
- Roebling, Washington Augustus, 1837-1926--Portraits.1
- Royce, Elmer Edwin.1
- Ryan, James.1
- Schenk, Robert C.1
- Sims, Jay.1
- Smithsonian Institution.1
- Spain. Ejército--Colonial forces--Cuba.1
- Spain. Ejército--Colonial forces--Philippines.1
- Spain. Ejército--Colonial forces--Puerto Rico.1
- Steever, E. Z.1
- Steinway & Sons.1
- Stephenson, George, 1781-1848--Portraits.1
- Stephenson, Robert, 1803-1859--Portraits.1
- Stokes, Edward S. (Edward Stiles), 1841-1901.1
- Stow, J. W., Mrs., -1902.1
- Strickland, Edward F.1