Aberdare religious census, Ychwanegu i'r clipfwrdd NLW MS 3468E. Ffeil [1851] Rhan oD. M. Richards Manuscripts, Forms used in a house-to-house religious canvass in Aberdare and district.
Aberdare eisteddfodau, Ychwanegu i'r clipfwrdd NLW MS 3463E. Ffeil [1900] x [1913]. Rhan oD. M. Richards Manuscripts, Notes on 'eisteddfodau' held at Aberdare.