- D7/10.
- Ffeil
Rhan oLeague of Nations Union and United Nations Association Records,
Copies of the Annual Radio Message of the Children of Wales - 1938, 1949, 1950, 1951, 1952, 1953; 'Welsh Goodwill Message 1953' in Cymru'r Plant; The Italian Goodwill Magazine 1952, The Scandinavian Goodwill Magazine 1953, The German Goodwill Magazine 1953, the Swiss Goodwill Magazine in German, 1953.