A pocket book belonging to William Thomas, Ty'ngadfan, Llanwnda (d. 1892), containing an incomplete metrical dialogue on temperance by Owen Griffith Owen, Bryncrin; 'Cwynfan gwraig meddwyn' (unsigned); an incomplete carol by Robert Jones, Bryn-y-gro; 'Cân ar ddull o ymdiddan rhwng Dyn a Llyffaint'; names of subscribers to Athraw Cerddorol and towards a Welsh oratorio; notes of sermons preached at associations held at Llangefni, Caernarvon, and Pwllheli, 1857-60; and a table of a Dinorwic quarryman's earnings, 1851-60.

Cofysgrifau yn perthyn i Eglwys Tarsis/Penrhydlyniog, Pwllheli, gan gynnwys llyfr casgliadau misol y Brodyr, 1862-1868; a llyfr casgliadau misol y Chwiorydd, 1862-1868, sy'n cynnwys casgliad y Tlodion a manylion eraill yn ymwneud â'r aelodau.