Kenneth George Frederick Mackenzie was a general surgeon at Shotley Bridge Hospital, County Durham. Born on 20 June 1911 in Brookwood, Surrey, he was the only son of John Mackenzie, a colonel in the RAMC and his wife Hilda Constance née Johnston. After attending Arnold House, a preparatory school in

Bernard Williams was a senior surgeon in Portsmouth. He was born into a medical family on 26 August 1910, his father, Morgan Watkin Williams, being a general practitioner in Morriston, Swansea. His mother, Beryl Jane née Gabe, was the daughter of a GP. He received his schooling at Marlborough Colleg