Letters, in English and Welsh, to Ceinwen H. Thomas from Lois Blake, Corwen, 1953-1962, and Walter Dowding, Bryn-mawr, 1953-1954, concerning the Nantgarw folk-dances and the publication of some of them (see Three Nantgarw Dances (Llangollen, 1954); also Ffair Caerffili and other dances from Nantgarw (Llanrhaeadr-ym-Mochnant, n. d.)); together with a carbon copy letter, 1976, from Ceinwen H. Thomas to E. C. Cawte, Leicester, concerning the Mari Lwyd (ff. 51-3) and a letter and press cuttings, 1985, concerning Cardiff Morrismen (ff. 54-6).