On account of the scope and thoroughness of his researches — and despite the fact that he published nothing beyond a few articles in various periodicals and newspapers — David Jones is regarded as one of our chief authorities on the post-mediaeval history of Glamorgan . During his retirement he worked indefatigably in the London libraries and record repositories; and during periodical visits to Glam. , he made abstracts of hundreds of Llandaff wills, made sketches of all the parish churches and many other historic buildings , copied all the older inscriptions in the churches and churchyards and made extensive extracts from such records as parish registers and the remarkable diary kept by the schoolmaster William Thomas ( 1727 - 1795 ) . The value of his transcripts and abstracts is greatly enhanced by the detailed indexes which he prepared, and in some respects his collections cover a far wider field than the county of Glamorgan itself. At Somerset House , e.g. he made abstracts of every Welsh will down to 1650 and every South Wales will down to 1700 . Under the terms of his own will his Welsh collections passed to Illtyd B. Nicholl , The Ham , Llantwit Major , and half a century later Nicholl presented the greater portion of them to Cardiff City Library , where the numerous letters which David Jones wrote to T. C. Evans ( Cadrawd ) are also preserved. A much smaller portion is included with the Llanmaes manuscripts at the National Library of Wales .
Thomas James Hopkins, (1919-87), Cardiff
Published date: 1959