Authors: robert
- Scott, Robert P. (Robert Pittis) 1852-1918
- Seaton, R. C. (Robert Cooper) 1853-1915
- Seaver, Robert 1873-1922
- Seeley, Robert Benton 1798-1886
- Selander, Robert K. -
- Sellar, Robert 1841-1919
- Seppänen, Rob. A. 1875-1920
- Service, Robert W. (Robert William) 1874-1958
- Seton-Watson, R. W. (Robert William) 1879-1951
- Sewell, Robert 1845-1925
- Seymour, Robert 1798-1836
- Shackleton, Robert 1860-1923
- Shaler, Robert -
- Sharp, R. Farquharson (Robert Farquharson) 1864-1945
- Sharp, Robert 1851-1932
- Shaw, Robert B. -
- Shea, Robert 1933-1994
- Sheckley, Robert 1928-2005
- Shepherd, William R. (William Robert) 1871-1934
- Sherard, Robert Harborough 1861-1943
- Shewell, Livingston Robert 1833-1904
- Shoppell, R. W. (Robert W.) -
- Shores, Robert J. (Robert James) 1881-1934
- Shufeldt, Robert Wilson 1822-1895
- Shufeldt, Robert W. (Robert Wilson) 1850-1934
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