| 1942 | The ‘Orders, Decorations and Medals Research Society of Great Britain’ was formed by four enthusiasts who had been meeting informally since 1939 |
| 1943 | Typewritten ‘Circular’ produced for all members |
| 1949 | Started meeting at the Imperial War Museum, London |
| 1950 | 123 members |
| 1958 | ‘Circular’ renamed ‘Journal’ and the Society’s title was shortened at the same time, to that which we have to this day |
| 1967 | OMRS Silver Jubilee and a membership of 350 |
| 1971 | 500 members & the establishment of the first branch, the Northern Branch |
| 1977 | 1,000-plus members |
| 1978 | First annual Convention held at the Cumberland Hotel, London |
| 1985 | 2,000-plus members |
| 1992 | OMRS Golden Jubilee |
| 2002 | OMRS Diamond Jubilee |
