Roger Grosjean (25 July 1920 – 7 June 1975) was a French Air Force pilot, a double agent during World War II, and one of the founding fathers of Corsican prehistoric archaeology. Early life Grosjean was born in Chalon-sur-Saône, the son of Joseph Grosjean, a judge. As Joseph was posted to different cities, the family lived in Lunéville, Briey, Lille, and Paris. At age 14, Roger was a boarder at the private Catholic school Collège de Marcq en Baroeul where, in 1936, he became the youth French record-holder in the discus throw. In 1939, at age 18, without completing his exams, Grosjean left school to join the French Air Force. Military career Grosjean was trained in Clermont-Ferrand and at the Ambérieu-en-Bugey Air Base, graduating second in his class. He was given the rank of Sergeant and, during the Phoney War, became a fighter pilot, based in Étampes, where he flew the Morane-Saulnier M.S.406 and the Dewoitine D.500. In May 1940, his plane was hit by Allied anti-aircraft fire and he was wounded. He was unable to take part in the Battle of France and, when German bombers struck the Étampes base, was elsewhere but returned to help dig the graves of his colleagues. In 1941, Grosjean was posted to the Fighter Group (GC) 2/1 in Le Luc; the group's mission was to protect the French fleet in Toulon. In September 1941, Grosjean's engine malfunctioned and he crashed into the forest at Flassans-sur-Issole. He was seriously injured and unable to return to duty until the spring of 1942, at which time his request to rejoin his group in North Africa was denied and he was deemed unfit to fly. Now a Master sergeant, he was accepted at Officer candidate school but his injuries barred him from attending. As a double agent In late 1942, what remained of the French military was demobilized. Grosjean was released, decided to go to law school and settled in Paris. According to his personal papers, his memoir, and research conducted by his son Francois Grosjean, Roger Grosjean was serving Vichy France but was not a collaborator. He publicly spoke against the Germans, considered stealing a German plane and flying to England, and his circle of friends included the French Resistance fighter Marcel Degliame. However, by May 1943, he was socializing with known collaborators. One of them was Georges Montet, whose brother Lucien, aka Christian Martell, was