- 2922-3142 etc.
- Is-is-is-fonds
- 1830-1855.
Dangos 13 canlyniad
Disgrifiad archifol- 3524-3564 etc.
- Is-is-is-fonds
- [1830]-1951.
Letters to Thomas Lewis, esq., MP
- C 1-28 etc.
- Is-is-is-fonds
- 1709-[1776].
Letters mainly from family.
Letters To The Reverend Sir Gilbert Frankland Lewis,
- C/3208-3345.
- Is-is-is-fonds
- 1848-1882.
Letters from family and miscellaneous other correspondents.
Letters to Sir Thomas Frankland Lewis
- C 356-590.
- Is-is-is-fonds
- 1805-1855.
Letters from family and miscellaneous correspondents.
Letters to Sir George Cornewall Lewis
- C 783-2336 etc.
- Is-is-is-fonds
- 1824-1863.
Letters from family and numerous other correspondents.
- C 119-188.
- Is-is-is-fonds
- 1768-1793.
For content see individual letters.
Letters To Anne Frankland (Afterwards Lewis, Afterwards Hare),
- C/203-229, C/231-237, C/257-262, C/285.
- Is-is-is-fonds
- 1798-1841.
For content see individual letters.
- C 29-118 etc.
- Is-is-is-fonds
- 1754-1776.
Letters mainly to family.
Letters from Sir Thomas Frankland Lewis
- C 591-642.
- Is-is-is-fonds
- 1801-1853.
Letters to miscellaneous correspondents, including some family members.
Letters From Sir Gilbert Frankland Lewis,
- C/3347-3355.
- Is-is-is-fonds
- 1863-1881.
Letters to family and miscellaneous other correspondents.
Letters from Sir George Cornewall Lewis
- C 2828-2933 etc
- Is-is-is-fonds
- [1814]-[1863].
Letters to miscellaneous correspondents, including family.
- C 189-201.
- Is-is-is-fonds
- 1772-1794.
For content see individual letters.