John Leslie Green was born in Buckden, Huntingdonshire, on 4 December 1888 to John George and Florence May Green. His father owned land in the area and was also a Justice of the Peace. Known as Leslie to his family, Green attended Felsted School, and went on to study at Downing College, Cambridge. Pursuing a career as a doctor, he studied medicine at St. Bartholomew's Hospital in London. He later worked at Huntingdon County Hospital, becoming qualified as a medical doctor in 1911.
At the outbreak of the First World War, Green was commissioned into the Royal Army Medical Corps. The early part of his military career was spent attached to the South Staffordshire Regiment as a medical officer before being transferred to the Field Ambulance. He was later posted to the Sherwood Foresters with which he went to France as part of the 46th Division, which fought in the Battle of Loos. His brother, who served in the SouthStaffordshire Regiment, was killed in the battle. On the opening day of the Battle of the Somme, the 46th Division was tasked with capturing Gommecourt Wood and then linking up the 56th Division which had been allocated the objective of Gommecourt Park, to the south. This was a diversionary attack, designed to draw German forces away from the battlefield further south. Beginning its advance at 7:25 am, the Sherwood Foresters had great difficulty moving forward due to heavy machinegun fire coming from Gommecourt Wood. Green, at the rear of the battalion, came across Captain Frank Robinson, who had been wounded and become entangled in barbed wire. Under heavy machinegun fire, Green extracted Robinson to a nearby shellhole and performed initial treatment on the wounds before carrying him back to British lines. Robinson was wounded again during this process and Green was killed by gunfire to the head while attending to his latest wound. Although Robinson was taken to hospital for treatment, he died of his wounds two days later. For his actions on 1 July 1916, Green was awarded the Victoria Cross. The VC, instituted in 1856, was the highest award for valour that could be bestowed on a soldier of the British Empire. The citation for his VC read as follows: Green is buried at Foncquevillers Military Cemetery. In 1921, Green's father built a memorial to the men of Buckden village who had been killed in the war and the names of his two sons are listed. They are also on the roll of honour in the village church. Green is also remembered by plaques at Felsted School and the Royal Army Medical Corps College in London.
Victoria Cross
Green had married Miss E. M. Moss, a doctor like her husband, earlier in the year and she was presented with Green's VC from King George V on 7 October 1916. She later remarried and gifted the VC to the Royal Army Medical Corps. It is now displayed at the Army Medical Services Museum in Aldershot.