Auger began the war as an infantry officer; he was wounded in action on 31 August 1914. He transferred to flying service in 1915, only to be wounded again on 8 July. On 22 September 1915, he took command of 31 Escadrille. He scored twice in this assignment, on 13 March and 2 April 1916. Auger was seriously injured in a crash on 16 April. He recovered, and flew with Escadrille 3 to score again on 9 February 1917. A week later, he was wounded yet again, in a dogfight with four Germans A month later, on 17 March 1917, Auger took command of Escadrille 3. He scored four more times, including a win shared with Joseph M. X. de Sévin, with his last being 28 June 1917. Auger then upgraded to a Spad. On 28 July, he took his Spad into a dogfight with five German planes, and was shot in the neck. Bleeding profusely, he somehow still managed to land behind friendly lines but bled to death within a few minutes. Jasta 8 seems to have been his opponent. Its commanding officer, Gustav Stenzel, was killed in this fight, with no one claiming him. Rudolf Francke of Jasta 8 posted a claim that went unconfirmed, but was probably Auger.