Names
- Peabody, Charles1
- Peabody, Charles.1
- Pennsylvania Railroad.1
- Peterson, Shorey, 1897-1981.1
- Pickard, Josiah Little, 1824-1914.1
- Pullman Company.1
- Raymond, J. Everett1
- Raymond, J. Everett.1
- Republican Party (Mich.)1
- Ripley, William Zebina, 1867-1941.1
- Rogers, Henry Wade, 1853-1926.1
- Rosenthal, Lessing, 1868-1949.1
- Russell, Bertrand, 1872-1970.1
- Salter, William Mackintire, 1853-1931.1
- San Pedro, Los Angeles & Salt Lake Railroad Company.1
- Sanborn, F. B. (Franklin Benjamin), 1831-1917.1
- Santayana, George, 1863-1952.1
- Sedgwick, W. T. (William Thompson), 1855-1921.1
- Seligman, Edwin Robert Anderson, 1861-1939.1
- Shapiro, Harold T., 1935-1