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 1894. He then acted for a time as demonstrator of and an examiner in anatomy at the university and as director of studies in natural science at Queens' College. At Guy's Hospital he was pathological assistant and held the Gee Fellowship. On the outbreak of the South African war he volunteered for service, was awarded the medal with five clasps, and received the CMG for taking command and bringing out of action the RHA battery to which he was attached, when all the combatant officers were either killed or wounded. During the war of 1914-18 he was medical inspector of the Humber garrison, and was afterwards on the staff of the Alderhey Orthopaedic Hospital, was twice mentioned in despatches, and acted temporarily as lecturer on anatomy at the University of Liverpool. As medical inspector it was his duty to act as sanitary officer of the large camps in Holderness, and he was indefatigable during the severe attacks of influenza which visited these camps. He began to practise in Hull in 1915, was physician for ten years to the Royal Infirmary, and served as librarian and president of the Hull Medical Society, and as chairman of the East Yorks and North Lincs division of the British Medical Association. He married in 1905 Sarah Irene, daughter of Foster Wilson of Kendal, who survived him with two sons and three daughters. Mrs Denyer died on 25 January 1948 at Buckhurst Hill. Denyer died at Hull on 25 February 1931. Publications:- Bacteriological examination of urine in enteric fever. (MD thesis) *Guy's Hosp Rep*. 1902, 56, 153. Case of encephalitis lethargica simulating hydrophobia, with D E Morley. *Brit med J*. 1921, 1, 191. Treatment of pernicious vomiting in pregnancy by gastric lavage and carbohydrate rectal feeding. *Ibid*. 1924, 2, 455. Tetanus treated by intracisternal injections of antitetanic serum. *Lancet*, 1928, 2, 119.