Born on 19 August 1874 the son of William Roderick of Llanelly and nephew of a general practitioner in that town, he was educated at Bath College, Emmanuel College, Cambridge and St George's Hospital, where he was house physician and house surgeon and later surgical registrar. In 1900 he went back t

The second son of Alfred Denyer, a merchant in the City of London, born in London 26 February 1869, his mother's maiden name being Sarah Mary Ann North. He matriculated from Queens' College, Cambridge and graduated BA after gaining second-class honours in Part 1 of the Natural Sciences Tripos in 189