Papers of Professor P. T. Thomas, Director, Welsh Plant Breeding Station (1958-74),
- C38-40.
- Is-is-is-fonds
- 1960-1974.
Papers of Professor P. T. Thomas, Director, Welsh Plant Breeding Station (1958-74),
W. E. J. Milton, Agronomy Department
Papers of Professor R. G. Stapledon, Director (1919-42),
Papers of T. J. Jenkin, Director Welsh Plant Breeding Station (1942-50),
Papers of Gwilym Evans, Head of Seed Multiplication and Deputy Director (1957-1961)