Papers of, or collected by, George Eyre Evans, 1669-1939, including his diaries and journals, autobiographical data and correspondence, 1872-1939; notebooks and scrapbooks on archaeological and historical matters in Wales, relating particularly to Carmarthenshire and Cardiganshire, 1900-1939; copies of his published works with insertions, [c. 1887]-[c. 1908]; diaries, memorandum books and autograph letters of members of the Powell family of Colyton, Devon, 1788-1921; diaries, correspondence and other papers of the Rev. David Lewis Evans, 1846-1902; letters and notes relating to Welsh Unitarianism, 1806-1905; letters by and about ministers, 1775-1904; miscellaneous manuscripts of religious and antiquarian interest, some relating to Wales and to Colyton; and a volume of proceedings of the General Assembly of General Baptist Churches, 1730-1787.

Letters, mainly addressed to Evan Owen, on matters relating to Baptist churches and organizations. The writers include Alfred H. Baynes, London, 1878; Charles Davies, Bangor, 1877; T. Witton Davies, Haverfordwest, 1883; Griffith Ellis, Bootle, 1908; J. Spinther James, Llandudno, 1877-1905; L. W. Lewis, Liverpool ('Llew Llwyfo'), 1899; and Thomas Lewis, Pontymister, 1885.