 Bernard's son, Oliver Percy Bernard OBE MC (1881–1939), was an English architect and scenic designer, responsible for the sets for Sir Thomas Beecham's "Ring" Cycle at Covent Garden.Through Bernard, Dahl is related to his sons, the poet and translator Oliver Bernard, the photographer Bruce Bernard, and the writer Jeffrey Bernard.Dahl's maternal grandparents were the author Roald Dahl and the American actress Patricia Neal.