BRONISŁAWA MANDELBAUM Place Transferred:Sosnowiec Ghetto Date of Arrival:3 Aug 1943 Camp:Auschwitz Prisoner Number:52643 Death Place:Auschwitz Notes:Last info. 05.01.1945 source
The dates correspond as does the ghetto but this person died in Auschwitz; Brandmans name appears on a list here.
Birkenau was in operation from march 42,but this jüdin makes it clear she was transported by train to Auschwitz 1 with its signature sign, then walked the 3.5 km to Birkenau. Of course she meets Dr Mengele, they all do.
She goes on to say that there was no bathing which is to imply no showering either.
Hygiene was out of the question. The prisoners never bathed