- Letters (36)
- Is-gyfres
- 1934-1935.
Dangos 1217 canlyniad
Disgrifiad archifol- Letters (38)
- Is-gyfres
- 1935.
- Letters 1867-1912
- Is-gyfres
- 1867-1912.
- Letters (16)
- Is-gyfres
- 1929.
- Letters (22)
- Is-gyfres
- 1931-1932.
- Letters (24)
- Is-gyfres
- 1932.
- Trevecka letters 2350-2530.
- Is-gyfres
- 1761-1762.
- Francis - Jones
- Is-gyfres
- 1846-1970.
Letters to Daniel Davies: O.R. - S. M. Powell,
- O.R. - S. M. Powell
- Is-gyfres
- 1874-1914.
Letters to Daniel Davies: Thomas Powell - Thomas Richards,
- Thomas Powell - Thomas Richards
- Is-gyfres
- 1872-1915.
- Sandy - Williams
- Is-gyfres
- 1863-1969.
Letters to Daniel Davies: D. Jones - Lemuel Jones,
- D. Jones - Lemuel Jones
- Is-gyfres
- 1866-1916.
Letters to Daniel Davies: J. Key - William Lewis,
- J. Key - William Lewis
- Is-gyfres
- 1864-1916.
Letters to R. J. Rees: Mary Salathiel - R. T. Vaughan,
- Mary Salathiel - R. T. Vaughan
- Is-gyfres
- 1909-1960.
Letters to D. Francis Roberts: Tom Beynon - T.M. Morgan,
- Tom Beynon - T.M. Morgan
- Is-gyfres
- 1926-1936.
- BBC- J. Ellis Jones
- Is-gyfres
- 1902-1950.
Letters from Patagonia to Nantlais,
- Letters to Nantlais
- Is-gyfres
- 1925-1945 (mainly 1938-1945).
- Is-gyfres
- 1916-1939.
Letters: Lewis Mendus- T. C. Williams,
- Lewis Mendus- T. C. Williams
- Is-gyfres
- 1898-1927.
Statistics of the District Sunday Schools,
- Statistics of District Sunday Schools
- Is-gyfres
- 1864-1942.
Canlyniadau 81 i 100 o 1217