John was educated at Felsted School; Downing College, Cambridge; and at St Bartholomew's Hospital qualifying M.R.C.P., L.R.C.P. in 1913. He then served as resident officer to the Huntingdon County Hospital. Upon the outbreak of war he joined the R.A.M.C. T.F. and entered the war in France on 2nd March 1915. John was first attached to as Medical Officer to the 5th Battalion, South Staffordshire Regiment, he then served with the 1/2nd North Midlands Field Ambulance. He was later killed whilst serving as Medical Officer to the 5th Battalion, Sherwood Foresters (Notts and Derby Regiment) at Foncquevillers in France. He was posthumously awarded the Victoria Cross "For most conspicuous devotion to duty. Although himself wounded, he went to the assistance of an officer who had been wounded and was hung up in the enemy's wire entanglements, and succeeded in dragging him to a shell-hole, where he dressed his wounds notwithstanding that bombs and rifle grenades were thrown at him the whole time. Capt Green then endeavored to bring the wounded officer into safe cover, and had nearly succeeded in doing so when he was himself killed." John was the son of John George and Florence May Green of St. Mark's Lodge, Cambridge. [Photograph courtesy of Simon Gildea]