Research papers of Professor T. V. Davies, 1981-[c. 1991], into the farms and farmers of Senghenydd Supra in the parishes of Gelligaer and Merthyr Tydfil including photocopies of documents in the Public Record Office, National Library of Wales, Glamorgan County Record Office, and Gwent County Record Office; miscellaneous research notes and transcripts; draft chapters; papers relating to the Llantrisant and District Local History Society, 1981-1990; letters to T. V. Davies, [c.1984]-1990; and typescripts of his lectures to history societies, 1988-1989.