Family and estate records of the Jones family of Gwynfryn, in the parish of Llangynfelyn, Cardiganshire, including deeds, 1600-1920; documents relating to William Basil Tickell Jones (1822-1897), bishop of St Davids; the enclosure and drainage of Cors Fochno, Llanfihangel Genau'r-glyn; 1816-1897, rate books for the parish of Llangynfelyn, 1844-1855; and papers relating to lead mines in Cardiganshire, 19 cent.