Authors: R. (sorted by release date)
- Clephan, R. Coltman (Robert Coltman) - Mar 26, 2021
- Krafft-Ebing, R. von (Richard) 1840-1902 Mar 26, 2021
- Schoolcraft, Henry Rowe 1793-1864 Mar 22, 2021
- Bain, R. Nisbet (Robert Nisbet) 1854-1909 Mar 13, 2021
- Palmer, Ray 1910-1977 Mar 6, 2021
- Whiteside, Robertson L. 1869-1951 Mar 4, 2021
- Von Wielligh, G. R. (Gideon Retief) 1859-1932 Mar 2, 2021
- Hull, Helen R. (Helen Rose) 1888-1971 Feb 26, 2021
- Knott, E. R. (Eustace Reynolds) 1880- Feb 8, 2021
- Stebbing, Thomas Roscoe Rede 1835-1926 Feb 8, 2021
- Adams, James R. - Jan 27, 2021
- Bartholomew, Fred. R. - Jan 21, 2021
- Lucas, Lex R. - Jan 19, 2021
- Beijnen, Laurens Reinhart Koolemans 1852-1879 Jan 11, 2021
- Leonard, R. M. (Robert Maynard) - Jan 7, 2021
- Hare, Robert 1781-1858 Dec 28, 2020
- Batka, Richard 1868-1922 Dec 28, 2020
- Nixon, K. (Kathleen) 1894-1988 Dec 11, 2020
- Henry, John Robertson 1868-1949 Dec 5, 2020
- Walling, R. A. J. (Robert Alfred John) 1869-1949 Nov 25, 2020
- Pritchett, R. T. (Robert Taylor) 1828-1907 Nov 22, 2020
- Cruikshank, Robert 1789-1856 Nov 22, 2020
- Jernberg, R. A. (Reinert August) 1855-1942 Nov 16, 2020
- Pears, James Roberts - Nov 13, 2020
- Murphy, R. A. - Nov 10, 2020