Notebooks and unbound material containing lectures, addresses and class essays by D. Pryse Williams, and largely in his hand, on 'Christian Experience of the Holy Spirit', 'Yr Ail-ddyfodiad', 'Llwyddiant y Gwaith Cenhadol', 'Y Tlawd yn rhai o'r Gwledydd Tramor ac hefyd yr Hen Deyrnasoedd', 'Yr Eglwys: Gwasanaeth ei Haelod Unigol', 'Ychydig o Hanes Ysgrifennu'r Beibl', 'The Boundless Gospel', 'Crist a'r Cartref', 'The Characteristics of the Welsh People', 'Joseph Harris ('Gomer')', 'Yr Athro Syr Henry Jones', 'Jac Glan-y-Gors', 'Gwilym Gwent', 'John Emlyn Jones, MA, LlD', 'Ioan Emlyn', 'Dick Sheppard', 'Dr John Clifford', 'Isaac Watts', 'Rawlins White, Caerdydd', 'Y Parch. Daniel Jones, Agra', 'Neges Timothy Richard i ni Weinidogion', 'Y Cenhadwr Doctor Griffith John, China', 'Apostol Indiaid Gogledd America', 'Cronfa'r Ad-drefnu (1946)', 'Newcastle Emlyn during the Civil War', 'Nodweddion Barddoniaeth Glannau Ceri', 'Edmund Spenser and the Faery Quean', etc. There are also addresses on temperance (e.g. 'Araeth Fer. Draddodwyd gennyf yng Nhyfarfod Dirwestol Salem, Hydref 23ydd 1907') and on the National Society for the Prevention of Cruelty to Children; addresses at funerals and on the ordination of deacons and the admission of new members, the ordination of his brother-in-law the Rev. Haydn Morgan, a native of Treherbert, at Hengoed Baptist Church [1932], and the re-opening of Philadelphia Baptist Church, Swansea [ 1947]; and class essays on 'Samson Agonistes', 'With what bard I would like to spend an hour', 'One of the characters in Paradise Lost. The Devil', and 'The Character of Ezra'.