Papers, 1878-1932, of Edward Jones Williams, relating mainly to the Welsh settlement in Patagonia and the Chubut Mercantile Company, comprising preparatory notes relating to the building of the Chubut Railway, c.1907, correspondence relating to both his work and to the Welsh colony, 1909-1932; and printed material, 1909-1932, including annual reports of the Chubut Mercantile Company, 1909-1928.