A manuscript of John Roberts ('Ieuan Gwyllt') used originally as a register of the pupils who enrolled in his school at Nanteos Arms [Capel Seion, near Aberystwyth] from its foundation on 12 June to 1 July 1839. The volume was subsequently used, [c. 1839-1840], to record hymn-tunes, hymns, metrical psalms, etc., by 'Ieuan Gwyllt', and notes of sermons by John Hughes, Pontrobert, [Thomas] Richards, Fishguard, David Howels, Thos. Evans, O. Williams, and H. Hughes, Llanrwst.

A book of sermons written in 1610. A receipt by John Jones, clerk, to 'Mr Morgan', vicar of Llanhasaph [i.e. Llanasa], 8 December 9 James I [1611], entered in the book suggests that it belonged to Evan Morgan, nephew of Bishop William Morgan. There are tithe and building accounts in the original hand. Later entries include lists of children of the Corwen and Gwyddelwern districts attending a local school, medical recipes and a copy of a brief on behalf of John Jones of Aberdaron, miller. In the middle of the eighteenth century the manuscript belonged to Evan Thomas, Cwmhwylfod.