W D Williams collection Lecture notes, 1923 including notes for a lecture concerning the history of Ystalyfera 1923, notes for a lecture on the old industries of Ystalyfera undated (?1920s) notes for a lecture on the history of the Parish of Llangiwg undated (?1920s) and a notebook recording the contents of other copybooks and notebooks undated (?1920s) 1923