Hen Fferm colliery account book,
- NLW MS 12476E.
- Ffeil
- 1824-1832.
Rhan oWigfair manuscripts
An account book of the ?Hen (Haun, Hain) Fferm (Ferm) colliery [co. ] in which the Reverend John Conway Potter [who assumed the surname Conway in lieu of Potter circa 1825], the Reverend Dr. Richard Howard and Miss [ ] Lloyd appear to have had an interest, 1824-1832.