Papurau yn cynnwys cofnodion, 1915-1980; papurau ariannol, 1964-1973; manylion am gwisiau ysgrythurol, 1964-1966; a gohebiaeth a phapurau,1964-1985, yn cynnwys rhai yn ymwneud ag adran glyweled y cyngor, 1966-1974, cynllun creu swyddi, 1976-1980, Antur, 1964-1978, a gohebiaeth a phapurau cyffredinol, 1966-1983 = Papers including minutes, 1915-1980; financial papers, 1964-1973; details of Biblical quizzes, 1964-1966; and correspondence and papers, 1964-1985, including relating to the council's audio-visual department, 1966-1974, job creation schemes, 1976-1980, Antur, 1964-1978, and general correspondence and papers, 1966-1983.

Papers of Mrs L. Eirlys Williams, 1905-1978, relating to her work for the Baptist Union of Wales and other Baptist causes, including letters to the Rev. and Mrs E. J. Williams [L. Eirlys Williams], 1949-1964; letters from various correspondents addressed to Mrs M. Christy Davies, secretary of the Welsh Baptist Ministers' and Missionaries' Wives Prayer Union, 1950-1953; Baptist Union of Great Britain and Ireland papers and printed material, 1930-1978; Baptist Union of Wales papers and printed material, including copies of The Inset, 1941-1978; and Baptist Missionary Society papers and printed material, 1905-1974, including English and Welsh copies of Prayer Partners, 1933-1974.

Papurau'r Parch. Iorwerth Jones, 1939-1992, o ddiddordeb diwinyddol yn bennaf, yn cynnwys gohebiaeth yn ymwneud â'r Dysgedydd, 1952-1968, Porfeydd, 1967-1978, ac Y Tyst, 1972-1989; gohebiaeth bersonol a chyffredinol, [c. 1955]-1991; papurau ymchwil, 1980-1986; a thorion o'r wasg, 1941-1992. = Papers of the Rev. Iorwerth Jones, 1939-1992, mainly of religious interest, including correspondence relating to Y Dysgedydd, 1952-1968, Porfeydd, 1967-1978, and Y Tyst, 1972-1989; personal and general correspondence, [c. 1955]-1991; research papers, 1980-1986; and press cuttings, 1941-1992.