Harry entered the war in France on the 16th August 1914 with the 4th Field Ambulance. His name appears on a list of R.A.M.C. personnel who were taken captive up to & including 31st December 1914. His address was given as 169 Copenhager Street, Caledonian Road, Kings Cross, London - (kindly provided by Steve Mattocks). In the early hours of 26th August, the 4th Field Ambulance were ordered to go to Landrecies to treat and evacuate the wounded. A couple of hours after entering the town the Germans arrived, and Harry became one of 219 of the rank and file of the R.A.M.C. to be held captive there. He was taken to Germany entering Sennelager POW camp on 4th September 1914. He transferred out of the R.A.M.C. on the 9th March 1917.