Genealogical items, including notes for the compilation of a pedigree of the Prydderch family of Tŷ Calch, Cerrig Gwyddel and Dyffryn Gwyn (2 bundles - 64-5); professional advice (by Ernest A. Ebblewhite) as to what armorial bearings would descend to W. Prytherch Williams and his family (67); transcripts of Wills, abstracts of deeds, etc. concerning the family (1 bundle - 68); 'Hanes Dyffryn Gwyn' (71); official description (?College of Heralds) of the armorial bearings of William Prytherch Williams (72) n.d.