Artwork by John Petts for E. Curig Davies, Y Morwr a'r Merthyr (London, 1940), including cover design and page layouts with sketches for wood engravings; together with seven ink and wash drawings, 1941, by John Petts of damage and injuries caused by air raids in Swansea during the Second World War, based on rough sketches and notes in an unidentified hand (see also Kusha Petts, 'Figure in a vestry' in Parachutes and Petticoatsm, ed. Leigh Verrill-Rhys and Deirdre Beddoe (Dinas Powys, 1992), pp. 181-2).