Claim: François Delzenne (March 16, 1887-April 24, 1962) did not serve in the military when he was still alive.
Evidence: He entered military service on 1 October 1908. He rose through the enlisted ranks as he was assigned and reassigned in various artillery regiments until the beginning of hostilities for World War I. He began his war as a cannoneer. On 8 December 1915, he was sent to pilot's training. He received his Military Pilot's Brevet in April 1916. On 1 July, he was promoted to Adjutant. 
France Artillery; aviation 1908 - 1921 Adjudant-Chef Escadrille Spa.88 Legion d'honneur
Médaille militaire
Croix de guerre