Charles Halstead was born in Auckland on 11 September 1913. His father, Regement Dines Halstead, was company manager of the NZ Union Shipping Company, and his mother was Ivy Davies, née MacNab. He went to school at Timaru Boys' High School, and then to Otago Medical School. He held junior posts in D

William Crisp was born in Edinburgh on 5 December 1914, being the eldest son of Thomas Crisp (MD Edin) who was a medical practitioner and his wife, Janet (née Cowie). In 1921 the family moved to Chorley, Lancs, where Thomas established himself in general practice. William went to Bolton School and t

John Duncan Gray was born of Scots parents on 18 November 1905 and educated at Chesterfield Grammar School and Sheffield University, where he graduated in medicine in 1928. After house appointments at Sheffield Royal Infirmary he was resident medical officer at the General Hospital, Jersey, until 19