Pedigree of Gwyddelod Bro Gwenog,
- NLW ex 2834.
- Ffeil
- [2010], 2013.
Photocopies of a pedigree compiled by John Davies, Lampeter, 1900, of the descendants of Thomas David of Crygwhyl, Llanwenog (original is NLW MS 8719F), with emendations, together with digitised copies produced by the donor in 2013.
Davies, John.