H. Marshall: Description and history of the Conway Valley,
- NLW MS 5552C.
- Ffeil
- [20 cent.].
A work by H. Marshall, Dolgarrog entitled A Description and History of the Mid-Conway Vale, mainly relating to the parishes of Eglwys Fach, the Abbey, Dolgarrog, Caerhun and Llanbedr.
Marshall, H., Dolgarrog.