David N Thomas was born in 1945. He was brought up in south Wales, and studied at a number of English universities. From 1970, he worked in community development in London, as a community worker, lecturer and senior manager. He also published widely, including Skills in Neighbourhood Work, with Paul Henderson.
He retired back to Wales in the early 1990s, and since then has written about the life and death of Dylan Thomas. His first book on Thomas was published in 2000, A Farm, Two Mansions and a Bungalow. The film rights were sold to make The Edge of Love. He has recently published Fatal Neglect: Who Killed Dylan Thomas?