David Pratt was a consultant general and vascular surgeon at St James’s University Hospital, Leeds. He studied medicine in Leeds, where he had a distinguished undergraduate career, gaining first class honours and graduating with distinctions in surgery and forensic medicine. After house appointments

Hugh Forrest, whose father was a draughtsman and whose mother, Annie Tough Hay was a secretary, was born in Greenock on 12 June 1929. His initial education was at Greenock High School, where he won a poster prize for National Savings; he then went on to medical school in Glasgow, graduating in 1955

Douglas George Arnott Eadie was a consultant surgeon at the London Hospital. He was born on 16 June 1931, the son of Herbert Arnott Eadie, a general practitioner in Leeds, and Hannah Sophia née Wingate. His father died when Douglas was a year old and he was brought up by his step-father, Sir Raymond