Genealogy /
Pilipczuk, Mankowski(a), Demusiak, Molczan...HELP PLEASE [17]
how i could find out IF my great grandmother died at a concentration camp in Poland?
If you haven't done so already you should make contact the ushmm.org/museum/exhibit/focus/its/ which has access to the International Tracing Service (at Bad Arolsen) archives which hold the survived records of millions of concentration camp victims. But you should be aware that a significant number (in some cases as much as 80%) of concentration camp records were destroyed by the SS camp authorities ahead of the Soviet and western allied forces liberation of the camps, so you may never find out a conclusive answer.
The other situation be be aware of is that it could take an age to get a reply before the USHMM gained access to the ITS records I had to wait almost 2 years for a definitive reply via Polish Red Cross and ITS.
You could also try searching the indeks.karta.org.pl/ KARTA Foundation who have an indeks.karta.org.pl/wyszukiwanie.asp online searchable database 'Index of the Repressed' ?
Good luck with your research!