| Authorised form of name | Cassels; James Macdonald (1924 - 1994) |
| Dates | 1924 - 1994 |
| Nationality | British |
| Date of birth | 09/09/1924 |
| Date of death | 18/10/1994 |
| Membership category | Fellow |
| Date of election | 19/03/1959 |
| Age at election | 34 |
| Other Royal Society activity | Congratulatory certificate on the fiftieth anniversary of election to the Fellowship of the Royal Society 2013 |
| Source | Obituaries:
Biographical Memoirs of Fellows of the Royal Society 1996 vol 42 pp 61-78, plate, by J R Holt |
| Virtual International Authority File | http://viaf.org/viaf/35837098 |
| Code | NA2101 |
Archives associated with this Fellow
| RefNo | Title | Date |
| EC/1959/06 | Cassels, James Macdonald: certificate of election to the Royal Society | |
| IM/GA/WRS/8342 | Cassels, James MacDonald | nd |
| RR/70/52 | Referee's report by Philip Ivor Dee, on a paper 'A search for secondary charged particles possibly emitted in the slow-neutron fission of 235u, using coincidence counting methods' by James Macdonald Cassels, John Christopher Dainty, Norman Feather and L L Green | 1947 |