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 | |
|---|---|---|---|
| Maunder, Mr. Edward Walter | United Kingdom | 1894 | 1928 |
| Espin, Rev. Thomas Espinell | United Kingdom | 1894 | 1934 |
| Henry, M. Paul | France | 1894 | 1905 |
| Newnham, Right Rev. Jervois Arthur | United Kingdom/Canada | 1895 | 1905 |
| Keeler, Dr. James Edward | USA | 1895 | 1900 |
| Downing, Dr. Arthur Matthew Weld | United Kingdom | 1896 | 1917 |
| Proctor, Miss Mary | USA | 1896 | 1957 |
| Elger, Mr. Thomas Gwyn Empy | United Kingdom | 1896 | 1897 |
| Russell, Rev. Norman H. | Canada/India | 1898 | 1902 |
| Monck, Prof. William Henry Stanley | Ireland | 1898 | 1915 |