Papurau Tom Williams, [c. 1919x1986], yn cynnwys nodiadau, copïau llawysgrif o erthyglau ac ysgrifau ar lenyddiaeth a chrefydd, a thorion o'r wasg o rai o'r erthyglau = Papers of Tom Williams, [c. 1919x1986], comprising notes, manuscript copies of articles and essays on literature and religion, and press cuttings of some of his articles.