Born in London 28 December 1870, the fourth child and only son of Henry Duffett, solicitor, and Emma Davis, his wife. He was educated at Sherborne School when the Rev E Mallet Young was headmaster. He entered Wildman's house in Newlands, which subsequently became a convent, in summer term 1885 and left from the sixth form in 1889. He then entered Guy's Hospital where he served as house physician and assistant demonstrator of anatomy, afterwards making a voyage as ship's surgeon in the SS *Georgia*. He settled in practice in Sidcup, Kent, in October 1899 and was soon appointed surgeon to the Sidcup Cottage Hospital and to the R division of the Metropolitan Police. During the war he acted as senior medical officer to the Sidcup and District Red Cross Hospitals. He married Elizabeth Gertrude Wood on 28 April 1900; she survived him with two sons. He died at Withy Holt, Hatherley Road, Sidcup on 26 August 1937. He was an excellent general practitioner with a distinct leaning towards surgery. Publications: Two cases showing the effect of extreme cold in injury. *Edinb med J*. 1899, 6, 539. Unilateral castration for prostatic enlargement in a man aged 87 years; atrophy of prostate, with H W Webber. *Lancet*, 1899, 2, 409. A case of diffuse suppurative peritonitis from gangrene of appendix; laparotomy; recovery. *Lancet*, 1900, 2, 731.