This collection consists of two groups of the Llanfyllin manuscripts. Group I comprises commonplace books and a diary of William Baxter, Wesleyan Methodist minister; financial accounts relating to the Llansilin (Denbighshire) Wesleyan chapel and to the Bagillt Nonconformist Cemetery Company; miscellanea of T. Nicholls Roberts, Wesleyan minister; sermons, poetry, anecdotes, etc. Group II comprises minute books of Llanfyllin committees; material relating to the Powys Provincial Eisteddfod at Llanfyllin, 1892-1922; miscellanea of Evan Davies, Wesleyan minister; journals of Edward Jones, constable of Llanfyllin; correspondence, etc. relating to Llanfyllin antiquities; editions of the Magazine of the Myllin Literary and Debating Society, 1898-1901; material relating to the Cambrian Railway at Oswestry, to the Vale of Clwyd Railway and to the Wrexham and Ellesmere Railway; sermons; etc.