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.