Guibert Jean-Marie was a lieutenant and air gunner-observer during the First World War. Born in Trinité on April 9, 1895, he continued his studies at the Lycée de Fort-de-France. He then moved to Paris and enlisted in the army in April 1913.
First an artilleryman, he was appointed observer in February 1917, with the rank of second lieutenant. With its role of observer, usually placed at the rear of a two-seater aircraft, it carried out intelligence missions. He had a double machine gun to defend the aircraft, the pilot was unarmed.
Besides Jean-Marie, two other Martinicans served in the air force as an observer or gunner, they are Sainte-Luce Calixte and Hébert Rosenard. Jean-Marie was assigned to the C224 squadron.
In September 1917, Jean-Marie was injured on landing, which earned him his third citation. Jean-Marie, crewed with Lieutenant Pellerin, shot down an enemy plane on June 28, 1918. But unfortunately for him, he would not come out of the war alive.
On September 2, 1918, attacked by 10 German planes, Lieutenant Jean-Marie and his pilot, Captain Marie-Henri Lamasse, bravely fought, but their Bréguet 14 A2 was shot down at Chavigny, near Soissons (Aisne).
The deaths of Jean-Marie and Lamasse were avenged by their comrades who managed to find the enemy squadron and decimate it. He rests, as well as his teammate, in the cemetery of Vaumoise (Oise). Already holder of the Croix de Guerre, in October 1918, posthumously, he received his fifth citation and the cross of the Legion of Honor.