Authors: Roberts (sorted by release date)
- Gilchrist, Murray 1868-1917 Jun 10, 2018
- Redaelli, Carlo - May 14, 2018
- Hunter, Robert 1874-1942 May 9, 2018
- Heymann, Robert 1879-1946 May 5, 2018
- Childers, Erskine 1870-1922 Apr 5, 2018
- Praeger, R. Lloyd (Robert Lloyd) 1865-1953 Apr 2, 2018
- Robertson, Frederick Leslie - Mar 18, 2018
- Knowles, Robert E. (Robert Edward) 1868-1946 Mar 4, 2018
- Blakeney, Robert 1789-1858 Feb 19, 2018
- Macalister, Robert Alexander Stewart 1870-1950 Feb 4, 2018
- Barclay, Robert 1648-1690 Feb 2, 2018
- Arnot, Robert 1860- Jan 30, 2018
- Stephens, Robert Neilson 1867-1906 Jan 13, 2018
- Darling, Charles R. (Charles Robert) 1870- Jan 10, 2018
- Van Bergen, R. (Robert) - Jan 3, 2018
- Roosevelt, Robert Barnwell 1829-1906 Dec 30, 2017
- Coolidge, Mary Roberts 1860-1945 Dec 21, 2017
- Engels, Robert 1866-1926 Dec 17, 2017
- Lloyd, Robert - Dec 2, 2017
- Cockerell, C. R. (Charles Robert) 1788-1863 Nov 29, 2017
- Ritchie, Robert Welles 1879-1942 Nov 23, 2017
- Keable, Robert 1887-1927 Nov 18, 2017
- McCarthy, Robert John - Nov 16, 2017
- Ferris, Robert G. 1921-2005 Oct 28, 2017
- Greene, Robert -1592 Oct 18, 2017