- Sunday school records
- Is-gyfres
- 1922-1972.
Dangos 1217 canlyniad
Disgrifiad archifol- Chapel history
- Is-gyfres
- 1977-1979.
Correspondence relating to the chapel, mostly addressed to the secretary, O. Lloyd Owen,
- Correspondence relating to the chapel
- Is-gyfres
- 1898-1932.
Collections and contributions,
- Collections and contributions
- Is-gyfres
- 1875-1976.
Reports, minutes and statistics,
- Reports, minutes and statistics
- Is-gyfres
- 1888-1988.
Correspondence and papers, and printed items,
- Correspondence and papers, and printed items
- Is-gyfres
- 1901-1968.
- Sunday school records
- Is-gyfres
- 1908-1944.
- Account books
- Is-gyfres
- 1911-1970.
- Trevecka letters 2350-2530.
- Is-gyfres
- 1761-1762.
- Trevecka letters 712-979.
- Is-gyfres
- 1742-1743.
Letters (M. H. Jones - W. Phillips),
- M. H. Jones - W. Phillips
- Is-gyfres
- 1914-1965.
- Hymn Book
- Is-gyfres
- 1924-1929.
Copies of the Bill and the Act,
- Copies of the Bill and the Act
- Is-gyfres
- 1932-1933.
- Legacies, year files
- Is-gyfres
- 1917-1973.
- Legacies H-K
- Is-gyfres
- 1941-1983.
- Pensions
- Is-gyfres
- 1967-1982.
- Ministers' Fund ('O' a/c)
- Is-gyfres
- 1936-1984.
- Repayment books
- Is-gyfres
- 1902-1960.
- Other papers
- Is-gyfres
- 1892-1972.
Correspondents T. A. Levi-Cyril Rowlands,
- Correspondents T. A. Levi-Cyril Rowlands
- Is-gyfres
- 1934-1936.
Canlyniadau 141 i 160 o 1217