Deeds and documents, 1727-1945, of clients of Bythway and Son, relating mainly to properties in the counties of Monmouthshire, 1727-1940, and Glamorgan, 1823-1937; material relating to properties in Merionethshire, 1876, and Cardiganshire, 1847-1876; deeds relating to properties in Cumberland, 1850, Gloucestershire, 1840, and Lancashire, 1880-1945; and miscellaneous papers, 1831-1918.

Deeds, relating to properties in the following counties: Anglesey, 1737-1871; Cardiganshire, 1736-1780; Carmarthenshire, 1684-1838; Caernarfonshire, 1831-1878; Denbighshire, 1591-1837; Flintshire, 1465-1855; Glamorgan, 1597-1883; Merionethshire, 1793; Pembrokeshire, 1683-1857; and Radnorshire 1623-1816.