Names
- Maxson, Gerald T., 1937-20151
- Meigs, Montgomery, 1847-1931.1
- Mount Washington Cog Railway.1
- National Archive of Computerized Data on Aging (U.S.)1
- National Archive of Criminal Justice Data.1
- National Criminal Justice Archive and Information Network.1
- National Institute of Justice (U.S.)1
- New York Elevated Railway Company.1
- Northern Pacific Railway Company.1
- Pennsylvania Railroad.1
- Princeton University.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
- Smithsonian Institution.1
- Steinway & Sons.1
- Stephenson, George, 1781-1848--Portraits.1
- Stephenson, Robert, 1803-1859--Portraits.1
- Strobridge Lithographing Company.1