Deeds, documents and probate records, 1617-1853, relating mainly to the parishes of Caerhun, Conwy, Dwygyfylchi, Gyffin, Llanbedrycennin and Llannor, Caernarfonshire, and to the Abbey estate, in Denbighshire, Merionethshire and Caernarfonshire, 1811-1819; notes on sermons, 1861-1889; and miscellaneous papers relating to Amlwch, Anglesey, 1801-1868.