The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 1, South Wales., by Jones, I.G. & Williams, D. UWP, Cardiff, 1976. These statistics for this parish or chapelry are extracted from this book which in turn got them from the 1851 census itself;
- Area 2867 acres; Population 434 males, 525 females, total 959
Places, villages, farms etc within Llandyfriog as shown on the online parish map from the CD of Historic Parishes of England and Wales: an Electronic Map of Boundaries before 1850 with a Gazetteer and Metadata [computer file]. (Kain, R.J.P., Oliver, R.R.). (Extracted by Gareth Hicks)
- Llandyfriog (93); Adpar (village); Afon Teifi; Allt-yr-Esgob; Blaen-cil-llech; Blaenant; Bryn-dioddef-isaf; Castell Henllys; Cilgwyn; Llain; Llandyfriog (village); Llwch-yr-hal; Old Cilgwyn; Pen-walk; Perth-y-fedwen; Plas-newydd; Pont-Ceri; Pwll-yr-haiarn; Sychpant; Wern-fach;
Description of the parish of Llandyfriog from A Topographical Dictionary of Wales (1833) by Samuel Lewis.
Descriptions of Townships in Llandyfriog parish from A Topographical Dictionary of Wales (1833) by Samuel Lewis
Evans, Gruffydd. Story of Newcastle Emlyn and Atpar to 1531. Cymmrodor; Calvinistic Methodist, 32, 1922, p. 58-170.
Lewis, R. LL. Love of Atpar. Welsh Gazette, June 17, 1937