This series comprises letters written to F. E. Llewellyn Jones answering his various enquiries, mostly into aspects of Welsh pedigrees, genealogy and history. There are also a few letters reflecting his interest in botany, conservation, linguistics, philology, the origin of Welsh words and place names, and aspects of the Catholic faith. Correspondents include public record offices, libraries, museums, universities, etc., and many individuals the most notable being Dr Michael Powell Siddons and Dr E. D. Jones, who were personally acquainted with F. E. Llewellyn Jones.
Twenty-one folio volumes, in uniform binding of half green morocco, containing transcripts by E. Noyes from a copy of the Golden Grove Book of Pedigrees, [c. 1765], now amongst the Cawdor Vaughan Muniments at Carmarthenshire Archives Service. See Edward Owen, 'The Golden Grove Book of Pedigrees', Archaeologia Cambrensis, 6th ser., 3 (1903), 154-169, and Francis Jones, 'An Approach to Welsh Genealogy', Transactions of the Honourable Society of Cymmrodorion (1948), 303-466 (pp. 412-414, 456-466). A7/XIX-XXI are noted on their front covers as 'Bodleian MSS'.