Two volumes, written at the end of the nineteenth century, by Thomas Morgan Joseph-Watkin, Portcullis Pursuivant of Arms, serving as an index to the Gilfach Pedigree Books (now NLW MS 23967i-iiE).
The first volume (23968iE) contains letters A-Pe of an index to family names, continued with letters Ph-Y in the second volume (23968iiE, pp. 181-315), which also contains an index to place-names (pp. 2-172). A pedigree chart by Joseph-Watkin, compiled [1894x1913] (NLW Rolls 62), shows that he was himself related to the Gilfach family.