Born in 1876 he was younger son of Colonel (afterwards General Sir) Charles Warren KCB, GCMG, FRS and Fanny Margaretta Haydon his wife. His grandfather, Major-General Sir Charles Warren KCB, had been Colonel of the 96th Regiment; his father, the second Sir Charles Warren (1840-1927), was a distinguished Engineer officer, who served as Administrator of Griqualand West in 1879, was Commissioner of the Metropolitan Police, London 1886-88, and commanded the 5th Division in the South African war 1899-1900; he was also an archaeologist and published an authoritative account of *Early weights and measures* (1914). "Dicky" Warren was educated at Charterhouse and New College, Oxford, where he took first-class honours in the Final School of Physiology and received his clinical training at the London Hospital, where he was successively Price scholar, surgical registrar, and assistant surgeon from 1909. He visited Berne and Vienna as a Radcliffe travelling Fellow in 1901¬03. He was surgeon to Shadwell Hospital 1907-2 1 and to Brompton Hospital 1915-21. During the first world war he served with the RAMC in France. He left London in 1921 for Weston-super-Mare, where he became surgeon to the Hospital. He was chairman of the Bristol division of the British Medical Association 1928-29, President of the Bath, Bristol, and Somerset branch 1935-36, and chairman of the East Somerset division 1937-38. He retired from practice in 1950, and died suddenly at Weston on 31 October 1957 aged 81. Warren married in 1912 Violet Irene daughter of A C Jenkins, of Heamoor, Cornwall. Mrs Warren died on 24 November 1941. They were survived by their daughter and two sons, one of whom R Pelham Warren became a Fellow of the College. Warren was a skilled operator, and an ideal teacher of individual pupils. He examined in surgery for the Universities of Oxford and Cambridge. As a young man he competed in the amateur heavy-weight boxing championship, and later enjoyed fishing and wild-fowling. He was a keen amateur musician. Publication: *A Textbook of Surgery*. London, Churchill 1915.2 volumes.