each. Lamason, Chapmen, Allen and 165 more airmen were taken to Buchenwald concentration camp in August 1944. Desoubrie or "Jean Masson" should not be confused with the Jean Masson (1910–1965) who participated in the creation of the traditionalist Catholic Cité catholique group, along with Jean Ousset, in 1946. Downfall After the liberation of Paris, Desoubrie fled to Germany. The Allies attempted to track him down in order to prosecute him. Finding him became easier when Michelle Dumon, back in Paris, was asked by an American intelligence officer to look at two photos of a man. She identified the photos as the man she knew as Jean Masson. He had offered his services to the Allied forces. With Desoubrie identified, he was soon found and arrested, after being denounced by his ex-mistress, and executed by firing squad as a collaborationist on 20 December 1949 in the fort of Montrouge, in Arcueil (near Paris) (Some sources say he was executed in 1945.) See also Roy Allen KLB Club List of people involved with the French Resistance References External links Book review by 207 Squadron Royal Air Force Association 1922 births 1949 deaths French spies Belgian spies Nazi collaborators shot at the Fort de Montrouge Executed Belgian collaborators with Nazi Germany People from Mouscron People executed by the French Fourth Republic 20th-century Belgian criminals World War II spies for Germany Executed spies Gestapo personnel