He worked energetically to form labour unions and branches of the Independent Labour Party in north Wales , assisting in founding the Caernarfonshire Labour Council in 1912 and the North Wales Labour Council in 1914 . He took a leading part in the debate on Socialism in Yr Herald Cymraeg in 1908 , followed by the publication of his first book, Y Werin a'i Theyrnas ( 1910 ), which left its influence on a number of unionists and Welsh Labour members. He took a keen interest in adult education . He was a tutor of classes held by the Workers’ Educational Association in Caernarfonshire for a long period ( 1928-59 ), and he maintained an official connection with the society until his d. In 1944 he commenced the publication of Lleufer , the Workers’ Educational Association periodical which he edited until 1965 . He gained a M.A. degree for a dissertation on ‘ A study of a rural and maritime community in the nineteenth century, with special reference to the relation between agriculture and shipping ’ ( Liverpool ; 1928 ), and an hon. M.A. degree of the University of Wales in 1960 .
He was a very effective speaker and radio broadcaster and he wrote many articles, pamphlets and books on a wide range of political, literary and historical topics, including: Y Blaid Lafur a Dinasyddiaeth y Gweithiwr ( 1912 ), Y Cynganeddion Cymreig ( 1923 ), Y Ddinasyddiaeth Fawr ( 1938 ), Hen longau a llongwyr Cymru ( 1949 ), Cau'r tiroedd comin ( 1952 ), Llafur a senedd i Gymru: ysgrifau, llythyrau a sgyrsiau ( 1954 ), a biography of Silyn (Robert Silyn Roberts) 1871-1930 ( 1956 ), and Ann Griffiths a'i theulu ( 1963 ); also ‘ Glendid iaith ’, a weekly column on grammar in Y Faner ( c. 1957-62 ). As a tribute to him he was presented with the volume, Ben Bowen Thomas (ed.), Lleufer y werin; cyfrol deyrnged i David Thomas, M.A. ( 1965 ), and his autobiography was published posthumously, Diolch am gael byw ( 1968 ). Some of his papers are kept at the National Library of Wales .
He m. 26 July 1919 , Elizabeth Ann Williams , New Broughton (d. 1955 after a very long illness) and they had a son and a daughter. He d. at the home of his daughter, the widow of Herman Jones (see above) , at 2 Pen-y-bryn , Burry Port, Carms. on 27 June 1967 .
Dr Mary Auronwy James, Aberystwyth
Published date: 2001