Horst B. lived at Binger Str. 13 in Berlin-Wilmersdorf before emigrating to Holland. He was deported from Westerbork in March 1944 to Auschwitz, and on 25.01.1945 to Mauthausen. Mauthausen is the actual place of death. See Mauthausen prisoner cards on Yad Vashem and Bundesarchiv Gedenkbuch.