- Ranney, George E., 1839-1
- Ranney, George E., 1839- author3
- Ransohoff, Joseph, 1853-1921 author1
- Ransohoff, Joseph, 1853-1921, author5
- Ransom, Charles C. (Charles Cook), 1860-1910, author2
- Ransome, F. (Frederick), 1818-18931
- Raoul, Pictet & Co., author.1
- Rapou, Aug. (Auguste)2
- Raspail, F.-V. (François-Vincent), 1794-18783
- Ratcliff, A. J. J. (Arthur James John), 1894- author1
- Rathbun, Mary Jane, 1860-19432
- Rathbun, Mary Jane, 1860-1943 author1
- Rattenmann, Ferd.1
- Rau, Gottlieb Martin Wilhelm Ludwig, 1779-18401
- Rauch, John H. (John Henry), 1828-18945
- Rauch, John H. (John Henry), 1828-1894, author3
- Raue, C. G. (Charles Godlove), 1820-18963
- Raue, C. G. (Charles Godlove), 1820-1896, author1
- Raue, C. Sigmund (Charles Sigmund), 1873-1
- Rauschenberg, Ch. (Christian), 1823 or 1824-18781