The papers of the Rev. Hugh Jones, including letters, 1825-1871, mainly addressed to him and relating to preaching engagements and church affairs during his ministry at Tredegar and Carmarthen; drafts of letters, articles and sermons [1825x1872]; diaries, 1833-1853; and miscellaneous material, [1809x1872].

Papers of Shadrach Pryce, 1841-1910, including: notes on the history of Ysbyty Ifan and Pentrefoelas, [late 19th century]; ordination papers, 1859-1899; family correspondence, 1841-1855; correspondence concerning his Church career, 1856-1910; papers and correspondence relating to Hymnau Hen a Newydd, 1867-1900; and maps, 1867-1894; papers of Archdeacon Lewis Hugh Oswald Pryce, 1881-1930, including: material on the history of Ruthin and district, 1890-1920; notebooks on historical themes, Sunday School lesson booklets and related material, 1913-1929; printed lectures by Pryce and others, 1918-1930; certificates, 1892-1925; pencil and watercolour sketches, 1862-1908; family and personal correspondence, 1881-1930; correspondence and papers relating to his Church career, 1909-1928, and to family history, 1901-1928; miscellaneous papers of Hugh Price, 1814-1851, Sarah Lewis' family, 1765-1825, Rev. Hugh Lewis Pryce and Rev. John Pryce, 1851-1894; letters, diaries, and miscellaneous papers of Margaret Ellen Pryce, 1854-1902; papers of Shadrach Pryce's daughters, 1893-1965, including letters and photographs, 1893-1928, and poetry, 1896-1920; papers of Dr Arthur Meurig Pryce, including letters, 1890-1918, testimonials, 1906-1912, and papers relating to his illness and death, 1915-[1923]; papers of James Davies, 1784-1861, and of his wife's relatives, 1812-1859; papers and correspondence of Rev. Morgan Davies, 1828-1867; papers and family correspondence of Margaret Davies, 1865-1897; papers relating to Hugh Davies, 1872-1883; papers relating to Lewis, David and Mary Elizabeth Davies, 1854-1932; miscellaneous papers relating to various branches of the family, compiled by Lewis Pryce, 1653-1893; correspondence, deeds, documents, financial papers, 1876-1920; and particulars of sale of properties in Tywyn, Merionethshire, 1916-1919.

Papers including autograph and typescript copies of published and unpublished works, 1948-1975; articles and talks, 1956-1973; untitled articles, 1930-1963; reviews of books written by him, 1948-1977; and correspondence mainly relating to his publications, 1946-1975. Also notes, newspaper cuttings and source material used by Daniel Parry-Jones for his books and articles on the following subjects: Wales and the Welsh Language, Agriculture and the Countryside, Dialect and Agricultural Terms, History and Legends of Monmouthshire, Children's Games, Food and Diet, and Church and Clergy.