Irena Mausner (n e Frydman) was three-and-a-half years old when the Nazi army invaded Poland in 1939. A few weeks later, they ordered her family to vacate her family home in an elegant Warsaw neighborhood-to leave forever. Irena and her sister, Margaret, hid in a Catholic orphanage on the outskirts of Warsaw during most of the war. Their father, Roman, a soldier in the Polish army, was captured in Budapest in 1944 and taken to a German POW camp;...