Authors: Roberts (sorted by release date)
- Smalls, Robert 1839-1915 Nov 3, 2020
- Hoe, Robert 1839-1909 Oct 25, 2020
- Wilson, Robert - Oct 21, 2020
- Wilson, Robert 1846-1893 Oct 12, 2020
- Nerciat, Andréa de 1739-1800 Sep 28, 2020
- Shufeldt, Robert Wilson 1822-1895 Sep 23, 2020
- Bray, Robert T. - Sep 17, 2020
- Genin, Robert 1884-1943 Sep 2, 2020
- Ridgway, Robert 1850-1929 Aug 31, 2020
- Payró, Roberto Jorge 1867-1928 Aug 17, 2020
- Fremantle, E. R. Sir 1836-1929 Aug 12, 2020
- Jameson, Robert 1774-1854 Aug 12, 2020
- Vernède, R. E. (Robert Ernest) 1875-1917 Aug 3, 2020
- Horsfall, R. Bruce (Robert Bruce) 1869-1948 Jul 31, 2020
- Grom, Robert A. - Jul 14, 2020
- Leydenfrost, Robert J. 1925-1987 Jul 3, 2020
- Cressman, Robert 1950- Jul 2, 2020
- Roberts, Hugh - Jul 1, 2020
- Malthus, T. R. (Thomas Robert) 1766-1834 Jun 15, 2020
- Mason, R. Hindry (Robert Hindry) - Jun 14, 2020
- Knapp, Samuel L. (Samuel Lorenzo) 1783-1838 Jun 12, 2020
- Lubbers, Bob 1922-2017 Jun 4, 2020
- Ritzenthaler, Robert E. (Robert Eugene) 1911-1980 May 30, 2020
- Macfie, R. A. Scott (Robert Andrew Scott) 1868-1935 May 29, 2020
- Roberts, Rhoda N. 1886- May 28, 2020