Hanes Eglwys Bethel (B), Rhosybol, 1841-2002, Eglwys Sardis, Dulas, (dathlu canmlwyddiant a hanner, 1983) gan y rhoddwr; ac Eglwys Bethania, Llaneilian (allan o'r Greal).

Letters, 1864-1867, from Robert Ellis to his son, Dr Robert Ellis, at Haverfordwest and Regent's Park, with enclosures: a prospectus of Geiriadur y teulu, Testynau Cymanfa Flynyddol y Bedyddwyr ... yn Amlwch ... 5-6 Mehefin 1866, tickets for lectures by Robert Ellis on 'Y mil Blynyddoedd', 2 November 1866, and 'Cynddelw, a Dynion od', 25 February 1867; Cyhoeddiadau Gweinidogion y Bedyddwyr ym Môn, 1867; letters by Robert Ellis to the Committee of the Baptist Fund, 1849, to John Robinson, Llansilin, 1859-1870, to his wife, 1861, and to J. Davies, 1870; and a copy of a letter to David Roberts ('Dewi Mawrth'), 1867.