Church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 11, North Wales. Ed. by Ieuan Gwynedd Jones, UWP,1981. The names given towards the end of each entry are those of the informants.
Rhiw Parish; Statistics; Area 1653 acres; Population 160 males, 216 females, total 376
Aelrhiw Parish Church Attendance - morning 15 Services in Welsh "Sometimes double or treble the number attend Divine Service, but generally speaking the people of this parish are Dissenters most inimically opposed towards the Church" Griffith Roberts, Rector
Chapels and Churches and more - on the Rhiw.com site
Rev. John Jones (1773-1827) Papers - details of extant records on Archives Network Wales
"A written invitation calling for John Jones to serve Nebo Congregational Chapel, in Rhiw, Aberdaron, 1820 July 27, .... Also, a memorandum that John Williams of Llanfaelrhys, Caernarfonshire advanced a sum of £50 to a John Jones for the purpose of building a chapel in the parish of Rhiw in 1812.
Rees, Thomas & John Thomas. Hanes Eglwysi Annibynnol Cymru (History of the Welsh Independent Churches), 4 volumes (published 1871+). Here is the entry from this book for Nebo chapel (in Welsh ) - with translation by Eleri Rowlands (June 2012)
RHIW, a parish in the hundred of COMMITMAEN, Lleyn division of the county of CARNARVON, NORTH WALES, 11 miles (W. S. W.) from Pwllheli, containing 358 inhabitants. This place derives its name, signifying the ascent of a hill, from its situation on the acclivity of Mynydd Rhiw, a lofty eminence which rises above the village to an elevation of one thousand and thirteen feet above the level of the sea. The parish, which extends across the isthmus of Lleyn, is situated on the western shore of the bay called Porthnigel, in the great bay of Cardigan, and comprises a considerable portion of arable and pasture land, of which about two-thirds are ancient enclosure, and the remainder, which is mountainous, was enclosed by an act for that purpose, in the year 1811. The soil, in the lower grounds, is a stiff clay, and in the higher lands gravelly, producing fine crops of barley and oats, and excellent grass ; and the enclosed commons afford good pasturage for sheep and young cattle. The surrounding scenery is pleasingly diversified, and is somewhat enlivened by several small rivulets, which run through the parish. From the summit of Mynydd Rhiw the prospect is strikingly beautiful, embracing the whole range of the mountains of Snowdon, and extending over Cardigan bay, St. George's channel, and a great part of South Wales. Plas Rhiw, for many generations the seat of the family of Lewis, and now the property and residence of Lewis Moor Bennet, Esq., is an ancient and handsome mansion, pleasantly situated, and comprehending within the grounds some pleasing and picturesque scenery. Manganese, of very superior quality, abounds in the parish : the vein in which it lies was first discovered in 1827, and has been worked since that time with very great success : about fifty persons are now employed in procuring it, the produce being principally sent to the Liverpool market. The living is a rectory, with the perpetual curacy of Llandudwen annexed, in the archdeaconry and diocese of Bangor, rated in the king's books at £6.14. 9 1/2., endowed with £ 200 royal bounty, and in the patronage of the Bishop of Bangor. The church, dedicated to St. Aelrhiw, is an ancient and spacious cruciform structure, in the early style of English architecture, and is in good repair. There is a place of worship for Independents, with a burial-ground attached. A school for the gratuitous instruction of poor children is held every fourth year in this parish, in rotation with that of Bryncroes, in which the tenement is situated which forms the endowment, and those of Aberdaron and Llanvaelrhys. Some land in the parish, now, producing £4 per annum, was bequeathed for keeping the church in repair. The average annual expenditure for the support of the poor is £ 111. 41 (A Topographical Dictionary of Wales by Samuel Lewis, 1833)
William Owen Roberts, Plas Llangwnadl Manuscripts 1793-1966 - details of extant records on Archives Network Wales
"The collection consists of transcripts of the parish registers of ............. Rhiw, 1845-1921.... "