Hugh Graham Stack was born in Bristol on 7 December 1915, the third son of Edward H E Stack FRCS (*Lives of the Fellows* 2, 340), ophthalmic surgeon to the Bristol Royal Infirmary, and his wife Caroline, née Kennedy. His early education was at Clifton College and whilst there he was awarded the H H

George Charles Lloyd-Roberts was born in Liverpool on 23 November 1918, the son of Griffith Lloyd-Roberts (MD Edinburgh) and the Hon Gwendoline Frances (née Wynn). He was educated at Eton College, Magdalene College, Cambridge, and St Thomas's Hospital qualifying in 1942. He then joined the Royal Arm