John was educated at the Grammar School, King’s Lynn; at Pembroke College, Oxford; at the Middlesex Hospital; and at the King’s and University Colleges. He obtained his L.R.C.P. and M.R.C.S. in 1890, then graduated M.A. (Oxon) in 1892 and M.B., B.Ch in 1894. In 1899 he became a Fellow of the Royal College of Surgeons of Ireland, and was for many years associated with the Soho Hospital for women, where he had a long period in the out-patient department, and was appointed surgeon to in-patients shortly before joining the R.A.M.C. Whilst at the hospital he took an active interest when it was being rebuilt in 1908, and was also a member of the committee concerning the new by-laws and regulations, under which the appointment of gynaecological surgeons, with modern surgical equipment, were being created to supersede the old position of obstetric physicians. He was also the president of the Chelsea Clinical Society, and one of the original members of the Executive Committee of the Westminster Division of the British Medical Association when the association was reconstituted in 1902, and by his outspoken criticisms, especially during the period when the Insurance Bill was under discussion, held the attention of the meetings. John joined the Sussex Imperial Yeomanry, Territorial Force, as Lieutenant on 7th January 1903. He was promoted to Captain on 15th August 1906 and volunteered for foreign service on the outbreak of war. The Sussex Yeomanry, however, already had two surgeons and the War Office only permitted one. John and his colleague tossed as to who should remain and John lost. For a time he had no military work but was eventually attached to the Eastern Command. In early 1915, as Second in Command under Colonel Gibb. he formed the East Anglian Clearing Hospital, then took command when Colonel Gibb died. John left for Gallipoli in August 1915, and was drowned on H.M. Transport “Royal Edward”, when the ship was torpedoed in the Aegean Sea. He was the eldest son of the late John Stockdale Dauber of King’s Lynn, Norfolk, and Ellen Lois, daughter of the Rev. Henry Edwards, Vicar of St. Germain’s, King’s Lynn; and the husband of Margaret Isabel, 3rd daughter of Lieutenant Colonel Addison Potter, C.B. of Heaton Hall, Newcastle-on-Tyne. They were married at Jesmond Church, Newcastle-on-Tyne on 6th November 1895.