Deeds, documents and correspondence, 1685-1947, relating to the Tyglyn estate in Cardiganshire together with rentals of the estate, 1803-1862; letters relating to the New Quay Harbour Company, 1846-1850; letters relating to land belonging to Alban T. Davies required in connection with the extension of the Welsh Midland Railway from Carmarthen to Cardigan, 1845-1846; and papers reflecting the military careers of Lt. Col. William Wilson and his son-in-law Captain Alban Thomas Davies of Tyglyn, 1800-1848.