| # | Reference code | Title | Dates | Access restrictions |
|---|---|---|---|---|
| 1 | 1/1. | Journalistic works, | 1937-1979. | None |
| 2 | 1/2. | Literary works, | 1930-2000. | None |
| 3 | 1/3. | Publishers' contracts, accounts and correspondence, | 1936-1999. | None |
| 4 | 1/4. | Military papers, | 1945, 1992. | None |
| 5 | 1/5. | University College of Wales, Aberystwyth, papers, | 1953. | None |
| 6 | 2/1. | Press cuttings concerning Goronwy Rees's resignation as Principal, | 1956-1983. | None |
| 7 | 2/2. | Cambridge Spy Ring papers, | 1938-1999. | None |
| 8 | 3/1. | Letters from Goronwy Rees, | 1931-1994. | None |
| 9 | 4/1. | Personal items, | 1910-1974. | None |