1941: Betty Quinn, 17, the youngest recipient of the George Medal, at the Investiture Ceremony at Buckingham Palace, London. She saved seven people from a bombed air raid shelter while serving as an ARP Warden in Coventry. (Photo by Keystone/Getty Images)
In 1914 an 18-year-old girl called Mairi Chisholm set out for London on her motor bike to see how she could help the war effort. She teamed up with a nurse called Elsie Knocker, who shared her spirit of adventure, and the pair of them went on to spend an incredible four years treating the wounded on the front line. They were the only women to live and work in the Belgian front-line trenches during the First World War.