On the website of the Holocaust Museum in New York you can find interviews of the people who were in that concentration camp as kids. It is not easy to watch.
The summary of the last one says: "the decapitation of her mother by a guard; her transfer to Jastebarsko children's camp with her brother; life in Jastebarsko, including the poor treatment of the children by the attending nuns;"
The summary of the last one says: "the decapitation of her mother by a guard; her transfer to Jastebarsko children's camp with her brother; life in Jastebarsko, including the poor treatment of the children by the attending nuns;"
https://collections.ushmm.org/search/catalog/irn44661
https://collections.ushmm.org/search/catalog/irn505922
https://collections.ushmm.org/search/catalog/irn44862
https://collections.ushmm.org/search/catalog/irn45368