David Havard Jones "Gaius" 1842-1902  
A Baptist minister and author, was born at Cendl, Carmarthenshire. When he was 12 years of age, his parents removed to Aberdare, and identified themselves with the church at Calfaria. Under Dr. Price's ministry, David was received into membership, and immediately became zealous in Christian work. When he was between 18 and 19 years of age, he commenced to preach, and within a few months he began to attend the Grammar School at Newcastle Emlyn. He afterwards studied at the Normal College, Swansea. In 1865, he received a unanimous invitation to the pastorate of the churches at Galltraeth and Rhoshirwaen, Caernarvonshire. After a successful ministry of five years, he became pastor of the church at Nantyffin, Swansea Valley.

There he toiled with energy and zeal until his health was impaired, and he retired from the ministry three years before his death. When at Nantyffin, he took the oversight of churches at Pontardawe and Senny Bridge, where his name is revered and honoured. As a contributor to Welsh Baptist periodicals, under the nom-de-plume of "Gaius," his articles were highly appreciated.