Comprises transcript copies and photocopies of documents relating to the Treflan Estate, Llanbeblig and Waun-fawr, Caernarfonshire. Includes:
- Copy probate of the will (5 April 1824) of John Evans of Caernarfon, including three codicils
- Copy of a Highway rate book for the parish of Llanbeblig, Caernarfonshire, 1889
- Copy probate of the will (9 March 1896) of William Humphrey Owen of Plas Penrhyn, Anglesey
- Copy probate of the will (21 September 1891) of Owen Lewis of Llangefni, Anglesey, chemist and druggist