Harold Strang Taylor-Young was born on 3 March 1902. He was the second son of Hugh Corbett Taylor, a gynaecologist in Sydney, Australia, and his wife Annie Rankin, née Strang. Taylor-Young noted on his CV form that his father "never legally hyphenated his name", but that he did in 1930. He came t

William Elphinstone Underwood was born in Birmingham on 20 October 1903, the son of Dr Arthur Underwood MRCS, a general practitioner, and his wife, Phyllis Maud (née Fairclough). His father was a descendant of Dr Michael Underwood, physician to Queen Charlotte, wife of King George III. His early edu

Henry Hamilton Stewart was born on 23 August 1904, the son of H A Stewart, a practitioner at Thornton, Bradford. He was educated at Bradford Grammar School, King's College Cambridge and St Thomas's Hospital. At Cambridge he was placed in the first class in the Natural Sciences Tripos of 1925. At St