Correspondence of David Thomas, 1907-1929, together with pamphlets, reports and other printed items relating mainly to socialism, the Independent Labour Party, workers' unions, agricultural wages, publication of Y Werin a'i Theyrnas, local committees in North Wales for improvement of social conditions, the Caernarfonshire parliamentary election, 1922, and miscellaneous unspecified subjects; incomplete copies of David Thomas's printed works, articles and parts of his thesis, 1928; account books, [c. 1878]-1910, belonging chiefly to John Williams, Bwlchgwyn, Denbighshire; a small notebook containing literary adjudications in connection with an eisteddfod at Tal-y-sarn, 1908, and translations of six stories from French into Welsh by Morfudd' [Miss H. Jones, Porth] andNehushtan' [N. El. Thomas, Swansea], entered at the Barry National Eisteddfod 1920.