Casgliad o 48 o eitemau sy'n cynnwys cyfrifon a phapurau amrywiol yn perthyn i Gapel y Graig (M.C.), ger Bangor, 1843-1869; nodiadau manwl am Gyfarfodydd Misol Arfon, 1848-1875; nodiadau Cymdeithasfa M.C. yng Nghaernarfon, 1853-1858 a Chymdeithasfeydd 1864 a 1870; llythyrau wedi'u cyfeirio at Ellis James yn ei swyddogaeth fel ysgrifennydd Cymdeithasfa Misol Arfon; cyfrifon fferm Vaynol, 1840-1865; derbynebau rhent ar gyfer Vaynol a Ty'n Llwyn, 1844-1873.
Mae 11 o'r eitemau yn bapurau sy'n perthyn i Evan Roberts o Pen-y-bryn, Pwllheli, ail wr Catherine Roberts, mam gwriag Ellis James. Mae'r rhain yn cynnwys cyfrifon Capel M.C. Edern, 1806-1827 a Chapel Penmount M.C., Pwllheli, 1822-1833; cyfrifon trysorydd Cymdeithasfa Misol Arfon, 1828-1838; amryw gyfrifon cartref yn perthyn i deulu gwraig Ellis James, 1832-1878.
A collection of 48 items which includes accounts and miscellaneous papers relating to Graig C.M. Chapel (near Bangor), 1843-1869; detailed notes of proceedings of, and sermons preached at, the Arfon Monthly Meeting, 1848-1875; notes of proceedings at C.M. Assemblies held in Caernarvonshire, 1853-1858 and the Associations of 1864 and 1870; letters addressed to Ellis James in his capacity as secretary of the Arfon Monthly Meeting; Vaynol farm accounts, 1840-1865, and rent receipts for Vaynol and Ty'n Llwyn, 1844-1873.
Eleven of the items consist of the papers of Evan Roberts of Pen-y-bryn, Pwllheli, the second husband of Catherine Roberts, mother of Ellis James's wife. These include accounts relating to Edern C.M. Chapel, 1806-1827, and to Penmount C.M. Chapel, Pwllheli, 1822-1833; treasurer's accounts of the Arfon Monthly Meeting, 1828-1838; various household and miscellaneous accounts relating to Ellis James's wife's family, 1832-1878.