Papers of Lewis Williams, Llanfachreth, one of Thomas Charles's itinerant schoolmasters. They include lists of pupils attending his school at Dolgelley, 1815 and 1817, a copy of the rules and regulations of a school which he kept at Dolgelley, 1822, and lists of books supplied for these and other Sunday and day schools in Merionethshire; letters to Lewis Williams from Joshua Bywater (Barmouth), 1812, and Edward Pugh (Dolgelley), 1821, and to Edward Griffith from D. Charles Evans (Menai Bridge), 1886; notes by Robert Oliver Rees; papers relating to Evan Owen, Pant Phillip, including his certificate of ordination, 1720; etc.