Peter Riddle was a well-known urologist who worked all his consultant life in London. He was emeritus surgeon at University College London and at St Peter's Hospital, and had been sub-dean at the Institute of Urology. He was born on 1 September 1933. His father, Leonard, was an assurance broker and

Michael Du Preez (he did not use ‘Hercules’) was born in Cape Town on 19 November 1935, the son of Hercules James Du Preez, a company director, and his wife Josephine Florence née Koll. Educated at Rondebosch Boy’s School from 1944 to 1952, he proceeded to study medicine at the University of Cape To

Ivor Alwyne Sewell studied medicine at King's College Hospital, qualifying MB BS in 1955. A lecturer in surgery at Westminster Hospital Medical School at the start of his career, he then became senior registrar in surgery at Glasgow Royal Infirmary. He was awarded a PhD for research into the microci