Llawysgrifau a chofnodion = Manuscripts and records,
- NLW MSS 17242-17302.
- Is-fonds
- [18 cent.]-1945.
Llawysgrifau a chofnodion o lyfrgell y Parchedig W. Rhys Watkin, M.A., Llanelli. = Manuscripts and records from the library of the Reverend W. Rhys Watkin, M.A., Llanelli.