Historic Buildings Council for Wales Ychwanegu i'r clipfwrdd S3/30 Ffeil 1959-1961 Rhan oLord Goronwy-Roberts Papers
Historic Buildings Council for Wales Ychwanegu i'r clipfwrdd S3/25 Ffeil 1956-1960 Rhan oLord Goronwy-Roberts Papers
Historic buildings in Wales Ychwanegu i'r clipfwrdd S3/27 Ffeil 1956-1970 Rhan oLord Goronwy-Roberts Papers