Accumulated papers relating to various external bodies that the Bishop was presumably involved with, including the Welsh Centre for International Affairs, the South Asia Church Aid Association, the Christian Institute Fund and the Churches' Council for Health and Healing, 1951, 1955-1957, 1959-1965, 1969-1982, 1993.
Statistical information compiled during or as a result of the visitation
Petitions for licences to solemnize marriages,
Questionnaires and papers relating to questionnaires, concerning the Welsh language, 1961, and the discussion between the Governing Body of the Church in Wales and the Methodist church, 1965.
Records of meetings in which the Bishop of Bangor was present, written by William Williams, domestic chaplain and private secretary to Watkin Herbert Williams, bishop of Bangor, 1900-1919.
Copy letter books, including copies memorandas and some original letters which have been inserted in the volumes, 1915-1924, of letters from Watkin Herbert Williams, bishop of Bangor and William Williams, domestic chaplain and private secretary to the bishop.
Papers relating to various subjects, presumably accumulated by the Bishop of Bangor, regarding matters such as buildings, including buildings of historic interest, broadcasting, Bangor Cathedral and the Bishop J. C. Jones' memorial appeal, 1955-1961, 1964-1966, [1968]-1992.
Notices of resignation and correspondence relating to resignations, 1939, 1954-1961, 1963-1971, 1973-1982, 1984-1987.
Correspondence - subject files
Correspondence relating to various subjects, such as properties and lands, clergy, probate and charities, general enquiries and Diocesan Conference annual meetings, 1939-1954.