In October 1944,[2] a subcamp of the Neuengamme concentration camp was established in the school to house prisoners used in clearing the rubble after air raids. The Bullenhauser Damm School was evacuated on April 11, 1945. Two SS men were left to guard the school: SS Unterscharführer Johann Frahm and SS Oberscharführer Ewald Jauch, and the janitor Wilhelm Wede.