Authors: Roberts (sorted by release date)
- Roberts, Harold DeWitt 1887-1956 May 28, 2020
- Graef, Robert A. 1879-1951 May 28, 2020
- Neuman, Robert W. 1930- May 21, 2020
- Stauffer, Robert Elihu 1884- May 12, 2020
- Holloway, Robert, active 1771-1808 - May 9, 2020
- Christman, Robert A. (Robert Adam) 1924- May 8, 2020
- Owen, Robert L. (Robert Latham) 1856-1947 May 7, 2020
- Quick, Robert Hebert 1831-1891 May 4, 2020
- Rogers, Robert Athlyi 1891-1931 Apr 27, 2020
- Ball, Robert S. (Robert Stawell) 1840-1913 Apr 1, 2020
- Benson, Robert Hugh 1871-1914 Mar 12, 2020
- Wallace, Robert 1853-1939 Mar 11, 2020
- Roberts, Scott - Feb 24, 2020
- Willis, Robert 1800-1875 Feb 15, 2020
- Lory, Robert 1936- Feb 12, 2020
- Scott, Robert - Jan 19, 2020
- Wicks, Robert - Dec 19, 2019
- Sims, George R. 1847-1922 Dec 12, 2019
- Dodsley, Robert 1703-1764 Dec 7, 2019
- Roberts, B. H. (Brigham Henry) 1857-1933 Nov 22, 2019
- Jones, Sydney R. (Sydney Robert) 1881-1966 Nov 9, 2019
- Oxford graduate - Oct 4, 2019
- Drysdale, Charles R. (Charles Robert) 1829-1907 Sep 29, 2019
- Nicoll, W. Robertson (William Robertson), Sir 1851-1923 Sep 24, 2019
- Potter, Robert 1831-1908 Sep 17, 2019