Papers concerning the life and work of D.A.Thomas, Ychwanegu i'r clipfwrdd 1-48. Cyfres 1894-[c.1920]. Rhan oDavid Evans (Industrial Journalist) Papers,
Miscellaneous notes and letter, Ychwanegu i'r clipfwrdd 58-60. Cyfres 1917, Sept.-1942, June. Rhan oDavid Evans (Industrial Journalist) Papers,
Papers concerning Sir David Richard Llewellyn. Ychwanegu i'r clipfwrdd 49-53. Cyfres Rhan oDavid Evans (Industrial Journalist) Papers,
South Wales Journal of Commerce Ltd. papers, Ychwanegu i'r clipfwrdd 55-57. Cyfres 1926-1935. Rhan oDavid Evans (Industrial Journalist) Papers,