Names
- Robbins, Frank Egleston, 1884-1
- Robertson, James Alexander, 1873-1939.1
- Robinson, Edgar Eugene, 1887-1
- Robinson, Edgar Eugene, 1887-1977.1
- Robinson, James Harvey, 1863-1936.1
- Rolfe, John Carew, 1859-1943.1
- Rose, John Holland, 1855-1942.1
- Ruthven, Alexander Grant, 1882-1
- Ruthven, Alexander Grant, 1882-1971.1
- Sawyer, Walter H. (Walter Hulme), 1861-1931.1
- Schelling, Felix Emmanuel, 1858-1945.1
- Schevill, Ferdinand, 1868-1954.1
- Schlesinger, Arthur Meier, 1888-1965.1
- Scribner, Charles, 1854-1930.1
- Seligman, Edwin Robert Anderson, 1861-1939.1
- Sellery, George C. (George Clarke), 1872-1
- Shorts, Robert P. (Robert Perry), 1879-1975.1
- Shorts, Robert Perry, 1879-1
- Shotwell, Ambrose Milton, 1853-1
- Shotwell, James Thomson, 1874-1965.1