Born: February 11, 1717, Pantycelyn, Wales.
Died: January 11, 1791, Pantycelyn, Wales.
Buried: Llanfair (about a mile north of Llandovery, Wales).
Known as the Sweet Singer of Wales, Williams was ordained a deacon of the Established Church in 1740 by Dr. Claget, Bishop of St. David’s, and for three years served the curacies of Llanwrtyd and Llanddewi-Abergwesyn; he never received Priest’s Orders. He became early acquainted with the revivalist Daniel Rowlands, and for 35 years preached monthly at Llaullian, Caio, and Llansawel, beside making preaching journeys in north and south Wales. He was held in great esteem as a preacher. His works include:
Halleluiah, 1744 & 2 more editions
Hosannah to the Son of David (Bristol, England: John Braham, 1759)
Y Môr o Wydr, 1762 & 4 more editions
Gloria in Excelsis, 1771
Source: The Cyber Hymnal