Honorary Membership was limited to 10 from 1890-1900, and to 15 from 1901 onwards. Corresponding Membership was a lesser class of Honoris causa membership in the early years. A few honorary members, such as Barnard, were first made corresponding members for a short time before being recommissioned as honorary members.
Nation(s) |
Start | End | |
|---|---|---|---|
| Newnham, Right Rev. Jervois Arthur | United Kingdom/Canada | 1895 | 1905 |
| Peal, Mr. Samuel Edward | United Kingdom/India | 1891 | 1897 |
| Woolley, Dr. Richard v.d.R. | United Kingdom/South Africa | 1961 | 1986 |
| Goldberg, Dr. Leo | USA | 1974 | 1988 |
| Schwarzschild, Dr. Martin | USA | 1963 | 1999 |
| Crawford, Dr. David L. | USA | 1997 | 2024 |
| Pasachoff, Dr. Jay M. | USA | 2003 | 2022 |
| Shoemaker, Carolyn | USA | 2003 | 2021 |
| Keeler, Dr. James Edward | USA | 1895 | 1900 |
| Pickering, Dr. Edward Charles, OPM | USA | 1894 | 1919 |