John Reginald Thompson was born on 13 March 1917 in Paignton, Devon, the son of John Thompson FRCS, GP surgeon of Torquay and Paignton and Elsie, née Royle. His mother was one of the first women to qualify as a doctor when she passed the MD in Manchester in 1909. He was educated at Sherborne School

John Withycombe was born in Exeter on 11 August 1918. the son of Arthur John Withycombe, a barrister, and his wife Winifred Annie, née Kiddle. He was educated at Sherbome, Pembroke College, Cambridge, and the Middlesex Hospital Medical School, where lie qualified in 1942. After only one house job