Ministry Of Information First World War Official Collection, Medicine: The two 'Women of Pervyse', Mairi Chisholm and the Baroness de T'Serclaes driving their motor ambulance through the ruins of Pervyse. The two women manned a first aid post in the Belgian front line for most of the war, 30 July 1917. (Photo by Lt. Ernest Brooks/ Imperial War Museums via Getty Images)