A holograph collection of 'cywyddau' and 'englynion' and other verse by John Williams entitled 'Prif Ddifyrwch y Cymro: Llyfr Cywyddau Duwiol a diddanol o waith John Williams, MDCCLXIII'; with a further collection beginning imperfectly, with the fifth item written in 1764; and loose sheets containing 'Hymn i'w chanu yn amser cynhaiaf', 'Ystyriaeth ar oes dyn, ar y pedwar mesur ar hugain' (ten only included), and 'Carol Plygain ar y Fedle-Fawr, 1796'.