Personal papers, 1926-1971, including scrapbooks, 1926-1951; programmes and posters of productions in which he acted or directed, 1936-1971; papers relating to St David's Theatre Trust; and a letter from Dylan Thomas, 1948.

Papers relating to Emlyn Williams, 1898-1989, comprising correspondence between EW and Sarah Grace Cooke, 1917-1964; other letters and copy letters of Sarah Grace Cooke, 1928-1964; letters from EW to other teachers, 1922-1944; transcripts of correspondence between EW and Molly Williams, 1940-1944; family letters, 1942-1987; correspondence between EW and theatrical friends, 1955-1989; letters of congratulation on CBE, 1962-1963; letters of condolence on death of Molly Williams, 1970-1971; family papers, diaries and school records, 1919-1982; scrapbooks compiled by EW, containing newspaper cuttings, fan letters and other material relating to his family and works, 1869-1961; manuscripts, typescripts, printed copies and annotated drafts of staged plays, 1926-1986; manuscripts and typescripts of unpublished novels, plays and short stories, 1919-1987; scripts, with revisions, of shows on Dickens, Dylan Thomas and Saki, 1951-1987; play adaptations and translations and copies of scripts for EW's acting roles 1935-1986; newspaper reviews of EW's works and appearances, 1961-1970; theatre porgrammes, photographs, and material rleating to current affairs, 1910-1987; radio scripts, 1940-1987, and script for TV commentary on Investiture of Prince of Wales, 1969; typescripts of speeches and readings, 1950-1987; papers relating to EW's autobiographies, novels, and 'Beyond Belief', 1962-1981; miscellaneous papers, [1933]-1990, and printed books, 1898-1987.

Papurau Meic Povey, 1966-2008, yn cynnwys sgriptiau, 1969-2007; llyfrau nodiadau, 1988-2005; astudiaethau o'i waith, 1988-[1999]; deunydd printiedig, 1968-2007; rhaglenni theatr, 1966-2008; a pheth gohebiaeth, 1968-2008. = Papers of Meic Povey, actor and dramatist, comprising scripts, 1969-2007; notebooks, 1988-2005; studies of his work, 1988-[1999]; printed material, 1968-2007; theatre programmes, 1966-2008; and some personal and work-related correspondence, 1968-2008.