John Stewart obituary

My husband, John Stewart, who has died aged 73 from cancer, was reader emeritus in gravitational physics at Cambridge University, and a fellow of King's College for more than 40 years.

John was born and brought up in Pinner, at that time in Middlesex. His father, James Stewart, was a Glaswegian who had been apprenticed at John Brown's shipyard but left Scotland in the 1930s and thereafter worked mainly for United Dairies as an engineer. His mother, Hilda (nee Hale), was a London-trained nurse from Merthyr Vale in south Wales. John was the eldest of their three sons.