Richard Llewellyn

Richard Dafydd Vivian Llewellyn Lloyd (8 December 1906 – 30 November 1983), known by his pen name Richard Llewellyn (), was a British novelist.
Biography.
Llewellyn was born in Hendon, Middlesex in 1906, the oldest of three children to Welsh parents Sarah Anne "née" Thomas (1878–1929) and William Llewellyn Lloyd (1876–1942), a hotel clerk and later the assistant secretary to a club. Only after his death was it discovered that Llewellyn's claim that he was born in St Davids, West Wales, was false.
In the U.S., Llewellyn won the National Book Award for favourite novel of 1940, voted by members of the American Booksellers Association.
He lived a peripatetic existence, travelling widely throughout his life. Before World War II he spent periods working in hotels, wrote a play, worked as a coal miner and produced his best-known novel. During World War II he rose to the rank of Captain in the Welsh Guards. Following the war he worked as a journalist, covering the Nuremberg Trials, and then as a screenwriter for MGM. Late in his life, he lived in Eilat, Israel.
Llewellyn married twice: his first wife was Nona Theresa Catherine Sonsteby (1921–1988), whom he married in 1952 and divorced in 1968; his second wife was Susan Heimann, whom he married in 1974. 
Richard Llewellyn died in Dublin on 30 November 1983.
Themes.
Several of his novels dealt with a Welsh theme, the best-known being "How Green Was My Valley" (1939), which won international acclaim and was made into a classic Hollywood film. It immortalised the way of life of the South Wales Valleys coal mining communities, where Llewellyn spent a small amount of time with his grandfather. Three sequels followed.
Llewellyn's novels often included the recurring element of protagonists who assume new identities (as they are transplanted into foreign cultures), such as the character Edmund Trothe whose adventures extend through several spy adventure books.