Authors: Ro
- Rolfe, W. J. (William James) 1827-1910
- Rolland, Romain 1866-1944
- Rolle, Richard, of Hampole -1349
- Rolleston, Humphry Davy, Sir 1862-1944
- Rolleston, T. W. (Thomas William) 1857-1920
- Rollin, Charles 1661-1741
- Rollin, Frank A. -1901
- Rollins, Alice Wellington 1847-1897
- Rollinson, Sunderland 1872-1950
- Roloff, Alfred Gustav Christian 1879-1951
- Rolph, George M. (George Morrison) 1873-1932
- Rolt-Wheeler, Francis 1876-1960
- Rølvaag, O. E. (Ole Edvart) 1876-1931
- Romagnoli, Ettore 1871-1938
- Romain, James Harold -
- Romanes, Ethel Duncan -
- Romanes, George John 1848-1894
- Romberg de Vaucorbeil, Maurice 1862-1943
- Romer, Cecil Francis 1869-
- Romero de Terreros, Manuel, marqués de San Francisco 1880-1968
- Romero, George A. -
- Romero, John Bruno -
- Rominus, G. G. -
- Romspert, George W. -
- Rom, Svend -
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