Gross-Rosen concentration camp about 1941. From left to right are the following SS officers: SS-Sturmbannführer Arthur Roedl, SS-Untersturmführer Friedrich Entress, SS-Oberführer Hans Loritz, SS-Obersturmführer Michl, SS-Obersturmführer Hubert Lauer and SS-Untersturmführer Anton Thumann. 35,000 to 40,000 victims perished at Gross-Rosen during the war.