Despite suffering from tuberculosis, Grobelny – together with his wife Halina (born 1900) – was personally involved in the rescue of a large number of Polish Jews during the German occupation of Poland. The couple was famous for their preoccupation with saving particularly Jewish children from the Holocaust by entering the Warsaw Ghetto and walking out with them as their own.Irena Sendlerowa (2007), "Julian Grobelny i jego żona Helena." FKCh "ZNAK" - 1999-2008. Internet Archive. They harbored over a dozen Jewish PPS activists in their home, and worked in close co-operation with Irena Sendler, head of the children’s section of Żegota. Julian (pseudonym "Trojan") and Halina turned their modest house in Cegłów near Mińsk Mazowiecki into a temporary shelter for Jews until they could be moved into a more permanent place. They offered protection to whoever needed it most, especially those who fled from the Ghetto in Warsaw. The Grobelnys devoted most of their time and energy to rescue work, but also helped Jewish adults by supplying them with “Aryan” papers, money and medicines.
