- Bala College I/108.
- Is-gyfres
- 1825-1827].
Dangos 1217 canlyniad
Disgrifiad archifol- Bala College I/109-128.
- Is-gyfres
- 1805-1841.
Letters from John Elias to John Davies,
- Bala College I/129-145.
- Is-gyfres
- 1813-1833.
Letters from John Wilks, Finsbury Place,
- Bala College I/146-172.
- Is-gyfres
- 1824-1829.
Letters from J. Bickerton Williams, Shrewsbury, to John Davies,
- Bala College I/173-182.
- Is-gyfres
- 1827-1831.
- Bala College I/183-200.
- Is-gyfres
- 1818-1844.
Constitutional Rules and a Confession of Faith,
- Bala College I/201-209.
- Is-gyfres
- 1819-1823.
Notebooks containing minutes of Associations,
- Bala College I/210-229.
- Is-gyfres
- 1810-1828.
- Bala College I/230-232.
- Is-gyfres
- 1814-1818.
- Bala College I/233-235.
- Is-gyfres
- 1816-1817.
- Bala College I/236-256.
- Is-gyfres
- 1836-1869.
- Bala College I/257-295.
- Is-gyfres
- 1835-1868.
- Bala College I/306-310.
- Is-gyfres
Letters to Thomas Charles Edwards,
- Bala College I/311-324.
- Is-gyfres
- 1856-1915.
- Bala College I/325-331.
- Is-gyfres
- 1856-1915.
Sermons, addresses and diaries,
- Bala College I/340-588.
- Is-gyfres
- 1847-1922.
- Bala College I/589-605.
- Is-gyfres
- 1898-1926.
- Bala College I/48-90.
- Is-gyfres
- 1795-1836.
- Bala College I/91-107.
- Is-gyfres
- 1807-1826.
- Bala College I/606-628.
- Is-gyfres
- 1738-1748.
[The numbers in brackets following the subject in the case of some of the letters are the numbers allotted to them in M. H. Jones, 'The Trevecka letters' (Caernarfon, 1932)]. They are described in more detail in Boyd Stanley Schlenther and Eryn Mant White, Calendar of Trevecka Letters.
Canlyniadau 1 i 20 o 1217