Williams was born in Taigwynion, near Tal-y-bont, Cardiganshire. He was the eldest of twelve children born to William and Elizabeth Williams. As was fairly usual in that era the parents attended different nonconformist chapels. His mother was a member at Pen-y-Garn, the Calvinistic Methodist church at Rhydypennau while his father attended Bethel Independent church at Tal-y-bont. William Williams was a lead miner and due to lack of work inthe local industry he went to work for some time in 1879-80 at the collieries in Mountain Ash. In 1882 the whole family settled in Penrhiwceibr in the Aberdare valley where they became members at Carmel chapel. Shortly afterwards they moved to Ynysybwl and joined Tabernacle, where the young Williams began preaching while working as a miner.
Education
Williams had received his elementary education at Pwllglas Sunday School and at Rhydypennau School in his native Cardiganshire, but left at an early age. While working underground he was accepted as a student to prepare for the nonconformist ministry, and attended Pontypridd Academy which was run by E. Dunmore Edwards. In 1891, he was accepted as a student at the Memorial College, Brecon and spent the first years of study at University College, Cardiff, where he excelled in his studies of Welsh language and literature.
Early Career as a Minister
Williams was ordained at Bethania, Abercynon, on 22 July 1895. In 1897, he moved to Moriah, Rhymney. After six years in Rhymney he moved to Seilo, Pentre, Rhondda, where he succeeded Lewis Probert.
While a miner at Ynysybwl, Williams began to earn a reputation as a poet, and it was reported in 1889 that the eisteddfod at Jerusalem, Ynysybwl saw the young poet come to public noticefor the first time. In the early years of the twentieth century, he began to compete at the National Eisteddfod and won the most prestigious prize, the bardic chair, on two occasions. The first was at Caernarfon in 1906 for an Awdl on Y Lloer He won for a second time at Llangollen two years later for a poem in memory of the popular nineteenth century Welsh poet, John Ceiriog Hughes These were written in the Glamorgan dialect and portrayed the mining communities. Williams was a prolific writer of hymns and one of the editors of the hymns of Caniedydd Cynulleidfaol Newydd, the standard Welsh language hymn book for the Independent and Calvinistic Methodist denominations, which was published in 1921. ) In 1918, he edited Cerddi'r Bugail, the collected poems of Hedd Wyn who had been killed in France in 1917. In 1930, he received an honorary MA from the University of Wales in recognition of his literary activity.
Personal life
In 1899, Williams married Claudia Bevan of Mountain Ash. She died at childbirth and their son died before he was two years old. In 1903 he married Abigail Jenkins of Pontlotyn, who died on 24 June 1936. Williams himself died on 6 May 1954.