Go to the glass exhibit case containing a leather pilot’s jacket. This jacket belonged to Sgt. Delbert Cooper. In 1943, Cooper served as a solider in the U.S. Army’s 14th Regiment, 71st Infantry Division. His story can be heard in the video in this exhibit. He was among the first Americans to enter and assist in liberating Gunzkirchen Lager, which was part of the Mauthausen-Gusen concentration camp in Austria.