Thomas Rees was succeeded by William Edwards, who remained until his death in 1884, during which time he played a part in founding most of the Independent churches of the Aberdare Valley. Edwards was a native of
Ffestiniog, North Wales, who had worked for several years in the slate quarries before earning enough money to further his education and enter the ministry. His home at Trecynon was known as Meirion Cottage. Edwards studied at
Brecon College and was invited to be minister at Ebenezer while still a student at that institution, and was inaugurated on 1 and 2 July 1844. In 1856, Edwards sought election to the
Aberdare Local Board of Health, seeking to emulate
Thomas Price of
Calfaria, Aberdare who had set a precedent by being the first nonconformist minister to participate in local government in the locality. During the 1868 General Election in the
Merthyr Boroughs constituency, a number of political meetings took place at Ebenezer, in support of both
Henry Richard and
Richard Fothergill. The meeting in support of Richard, in September 1868, was chaired by David Davis, Maesyffynnon. Fothergill's meeting, in October, was equally enthusiastic and presided over by the Baptist minister, William Harris of
Heolyfelin. Edwards became President of the
Union of Welsh Independents towards the end of his life. During his time at Aberdare he had a celebrated argument with
Thomas Price about Baptism but the rift was healed and Price participated at his funeral. At the end of his ministry he was elected president of the Union of Welsh Independents. ==The pastorate of Grawys Jones, 1885–1925==