Mae'r fonds yn cynnwys cofrestri priodas, 1936-1959.

Vestry book of the parish of Llanrug, Caernarvonshire, 1774-1829, with a list of overseers of the poor, 1792-1831, and a record of the population of Llanrug taken 3 June 1811. Some of the entries are in the autograph of the Reverend Peter Bailey Williams, who was rector of Llanrug and Llanberis from 1792 until his death in 1836. There are a number of entries at the reverse end of the book also. Many of the pages are blank.