Stuart entered the war as a medical officer with the British Red Cross Society on 6th October 1914 and served in a base hospital. He qualified M.R.C.S., L.R.C.P. at Cambridge and Univercity College Hospital in 1915. He is mentioned in the 100th Field Ambulance war diary on 31st July 1916 as being wounded (not seriously) & evacuated. [*Information kindly provided by Bill Evans]