In 1911 R. G. Berry, as he came to be known, became prominent as one of the pioneers of the drama in Welsh. Amongst his plays are Asgre lân, Owen Gwynedd, Ar y groesffordd, and Y Ddraenen wen: shorter plays are Noson o farrug, Cadw noswyl, Dwywaith yn blentyn, and Yr Hen anian. He mastered the art of setting his plays, the techniques of live dialogue, and soon learnt what was required in the portrayal of characters. His plays which were based on the familiar everyday life of Wales, achieved great popularity and were acted in all parts of the country. He was particularly successful in writing in a style which became popular but in which genuine Welsh idiom was not travestied. He also wrote, from time to time, satirical essays and parodies which are marked by their lively criticism and astuteness. His collection of short stories, Llawr Dyrnu, contains memorable sketches of local characters. For his services to the literature of Wales he was awarded the degree of M.A. (honoris causa) by the University of Wales in 1925. He was chairman of the Glamorgan Congregational Union in 1943 and in 1944 he delivered at Newcastle Emlyn a memorable address — ‘Arglwyddiaeth Crist’ — from the chair of the Welsh Congregational Union. He d. 13 Jan. and was buried at Pen-tyrch cemetery, 16 Jan. 1945.