The page of Hachenburg, Hanuš, English biography
Biography
Hanus Hachenburg was a boy who was taken to Terezín and lived there for several years, on 18 December 1943, he and his mother were taken to Auschwitz-Birkenau, where he was last heard of presumably he died in 1944, when he was 15.
http://underskies.blogspot.hu/2010/08/hanus-hachenburg.html
(Editor of this page: P. T.)