Papers, 1936-1986, of literary journalist, editor and poet William Ronald Rees Jones (Keidrych Rhys), comprising a significant amount of correspondence, 1936-1986, from numerous individuals, largely in the recipient's capacity as editor of Wales magazine and including literary articles, poetry, etc. submitted for publication; miscellaneous papers, 1936-1938, 1943-1969, relating to the Wales magazine and consisting mainly of publicity and editorial material; articles, both published and unpublished, and notes, [1950s]-[1960s], by Keidrych Rhys, mainly relating to literature and the arts; and drafts of apparently unpublished poetry, [1950s]-[1960s], by Keidrych Rhys.

Over a hundred letters, 1901-1991, of miscellaneous provenance from twentieth-century Anglo-Welsh writers to various recipients; the correspondents include Gillian Clarke (10, and three poems) 1986-1988, Rhys Davies (10) 1928-1929, 1975-1978, W. H. Davies (13, together with press cuttings, 1905-1950s, and four printed poems) [1909x1913]-1925, David Jones (8) 1960-1973, John Cowper Powys (7) 1927-1953, Dylan Thomas (10) 1938-1952, Edward Thomas (7) 1901-1912, Gwyn Thomas (2) 1952-1953, R. S. Thomas (6) 1956-1960 and Vernon Watkins (5) 1962-1966.