Andrew Logan was a pioneer of cardiothoracic surgery in Edinburgh. He was born in Dairsie, Fife on 6 November 1906. His family were farmers. He left school at 16 and went to St Andrews University, gaining an MA in 1926. He then turned to medicine, qualifying in 1929. He went on to train in Newcastle

John Stuart Bailey (or 'JCB') was a consultant cardiothoracic surgeon in Leicester. He was born in Jerusalem, Palestine, and spent his early years in Cairo, before being evacuated in 1940 to Durban and on to England. He was educated at Sherborne School, Gonville and Caius College, Cambridge, and St