Joseph Gringlas was born in Ostrowiec. During the war, he was separated from his family and transported to a various camps, including Auschwitz-Birkenau. In 1945, the camp was liquidated. Joseph was sent on a forced march to Gleiwitz, and then on to Dora-Nordhausen, where he and his brother Sol were liberated. After the war, Joseph spent several years in Landsberg, Germany. He emigrated to the United States in 1951.