Newsletters, programmes, publicity material and ephemera connected with Welsh societies in America, 1939-1985; in Canada, 1968-1985; miscellaneous North American Welsh societies, 1970-1985, including the Welsh National Gymanfa Ganu Association, 1970-1985; Women's Welsh Club of America, 1977-1984; Welsh Associated Youth of America and Canada, 1982-1985; Cymdeithas Madog, 1980-1985; and National Welsh-American Foundation, 1982-1984; further papers donated in 2005.

Papers of Leonard Eliot Crawshay-Williams, mainly correspondence, 1865-1957, including general literary correspondence, [1907]-1957; literary press cuttings, 1907-1939; notes for speeches, 1904-1945; press cuttings, 1888-1947; financial and administrative papers, 1902-1945; family papers, 1865-1951; insurance policies, 1900-1944; papers relating to Canadian interests, 1902-1954; family correspondence, 1872-1936; and correspondence between Eliot Crawshay-Williams and women friends, [n. d.].

The file contains correspondence and papers relating to the organising of the tour, 1908-1982, and includes letters and reports from Gillian Clarke, Robert Minhinnick and Alun Richards. There is also correspondence with American and Canadian writers including Joseph Clancy; correspondence with the British Council and with the British American Arts Association.