W. J. Gruffydd was Head of Welsh at University College Cardiff between 1919-46.
Typescript and page-proofs (with manuscript corrections) of W. J. Gruffydd, 'Islwyn' (Caerdydd, 1942). Papers of the Departmental Committee on the teachings of Welsh, 1923-25 and of the Sub-committee of the Central Welsh Board on the teaching of Welsh, 1922-23. Also included are several printed pamphlets bearing on the inquiries, e.g. Sir Joseph Bradney, The decay of the Welsh language in Monmouthshire (1926).