Born on St Valentine's day in St Pancras, London, the son of Henry Guard Knaggs (q.v.).
Studied at University College (LSA and MRCS 1881) and the University of Edinburgh.
Worked as a doctor with the Peninsula and Orient Steamship Company, then at Boscombe Infirmary. Then general practitioner from 1883 in north London.
Author of many pamphlets etc on health matters, mostly harmless.
