Authors: R. (sorted by release date)
- Baden-Powell of Gilwell, Robert Stephenson Smyth Baden-Powell, Baron 1857-1941 Aug 5, 2021
- Cates, William L. R. (William Leist Readwin) 1821-1895 Aug 3, 2021
- Dickson, Gordon R. 1923-2001 Aug 2, 2021
- George R. Fuller Co. (Rochester, N.Y.) - Aug 1, 2021
- Ursin, N. R. af (Nils Robert) 1854-1936 Jul 17, 2021
- King, D. R. - Jul 9, 2021
- Gay, Joseph R. - Jun 24, 2021
- Tenreiro, Ramón María 1879-1939 Jun 24, 2021
- Aspelin, J. R. (Johan Reinhold) 1842-1915 Jun 19, 2021
- Bird, Robert Montgomery 1806-1854 Jun 18, 2021
- Scottron, Samuel Raymond 1841-1908 May 27, 2021
- Crozier, R. H. (Robert Hoskins) 1836-1913 May 26, 2021
- Wood, Robert Williams 1868-1955 May 24, 2021
- Culver, R. K. (Richard Keith) 1873-1937 May 23, 2021
- King, R. J. (Richard John) 1818-1879 May 20, 2021
- Glazebrook, Richard 1854-1935 May 16, 2021
- Moncrieff, A. R. Hope (Ascott Robert Hope) 1846-1927 May 15, 2021
- Wadleigh, R. H. - May 11, 2021
- Cohen, Morris R. (Morris Raphael) 1880-1947 May 7, 2021
- Peterson, Steven R. - May 1, 2021
- Havell, Robert 1793-1878 Apr 30, 2021
- Rice, R. J. - Apr 21, 2021
- MacArthur, Robert Stuart 1841-1923 Apr 13, 2021
- Keene, Day 1904-1969 Apr 13, 2021
- Culverwell, Robert James 1802-1852 Apr 6, 2021