Christopher John Lester Thurgar studied medicine at University College Hospital, London, where he was an assistant in the surgical unit and the Cancer Registry. He became director of the Regional Radiotherapy Service and radiotherapist to the Royal Victoria Infirmary in Newcastle. He was made a Fell

Edward Alexander Butterworth was an ophthalmic surgeon to the Luton and Dunstable Hospital. He was born on 6 July 1907, at Port Elizabeth, South Africa, the son of Arthur Shaw Butterworth, a civil engineer, and Ida Evelyn White. He was educated at the Royal Masonic School, Bushey, from which he gain