Born in London, where her parents lived at the time, she was named for the River Aeron. In 1949, the family moved to the Boat House, Laugharne, Carmarthenshire, Wales. After her father's death in 1953, she and her mother went to Rome, later moving to Sicily. She learnt Italian and became a translator of Italian poetry. She was also known as an ambassador for her father's work, and as a patron of the Dylan Thomas Society. Visiting professor in schools and universities in the U.K. and abroad, in the late ‘90s she was very popular with the students of Giuseppe Perotti School in Torino, Italy, for her "creative writing" courses. In 2007 she became President of IMMAGINE&POESIA (Image and Poetry), the international artistic literary movement founded at Teatro Alfa, Torino, Italy.
- Later than Laugharne (Celtion, 1976)
- Christmas in the Boathouse (2003)
- A daughter remembers Dylan (Merton Books, 2006) - an expanded version of the booklet Christmas and Other Memories
- I Colori Delle Parole (Rotaract, 2007) - includes poems by Aeronwy Thomas and paintings by Gianpiero Actis (in Italian and English)
- Burning Bridges (Cross-Cultural Communications, Merrick, New York, 2008)
- Shadows and Shades - Selected Poems (Poetry Monthly Press, 2009)
- My Father's Places (Constable, 2009)
- "Articolo di Lidia Chiarelli: Visita a Torino di Aeronwy Thomas, fondatrice di IMMAGINE&POESIA". 9 April 2011.
- Ministero dell'Istruzione dell'Università e della ricerca - Ministero del Lavoro e delle Politiche sociali " Words Images Sounds. Poesia Arte Musica e le tecnologie del terzo millennio" Label Europeo 2003, Risa ed., 2004, p. 82 - 84.
- Template:Cite book
- "HONORARY MEMBERS OF IMMAGINE&POESIA". 17 March 2010.
- "Daughter of Dylan Thomas has died". BBC. 28 July 2009. Retrieved 28 July 2009.