Letters, 1929-1947, mainly to Mrs Eva Mary Bell, relating chiefly to her book, The Hamwood Papers (London, 1930), with copy and draft letters from her, and miscellaneous family letters; together with a typescript synopsis of the book, a typescript radio script on the Ladies of Llangollen, and related notes.

Four typescript radio scripts, 1953-1960, by Margiad Evans or based on her work, comprising 'The Silver Lining', broadcast 1953; 'December Day', broadcast 1956; 'Dear Desdemona', [1950s], based on the letters of Lord Byron, apparently not broadcast; and a dramatisation of her novel, 'Country Dance', broadcast 1960.

Deunydd yn ymwneud â gwaith Menna Elfyn o fewn cyfryngau'r teledu a'r radio, gan gynnwys dramâu, rhaglenni dogfen, sgyrsiau a chyfweliadau.