Rank and organization: First Lieutenant, U.S. Army Air Corps, 359th Bomber Squadron, 303d Bomber Group. Place and date: Over Vegesack, Germany, 18 March 1943. Entered service at: San Angelo, Tex. Born: 25 September 1921, San Angelo, Tex. G.O. No.: 38, 12 July 1943.
Citation... For conspicuous gallantry and intrepidity above and beyond the call of duty in action with the enemy over Vegesack, Germany, on 18 March 1943. 1st Lt. Mathis, as leading bombardier of his squadron, flying through intense and accurate antiaircraft fire, was just starting his bomb run, upon which the entire squadron depended for accurate bombing, when he was hit by the enemy antiaircraft fire. His right arm was shattered above the elbow, a large wound was torn in his side and abdomen, and he was knocked from his bomb sight to the rear of the bombardier's compartment.