Per his death report, he became a naturalized citizen of the United States on 28 November 1939. His last known address in the United States was in Los Angeles, California. He died of post operative shock at General State Hospital in Athens. Other people listed on his report were: Wife - Mrs. Calliopi Panton of Athens, Greece Son - John Panton of Athens, Greece Brother - Christos Pantostopoulos of Larissa, Greece Sister - Athina Pantostopoulos of Larissa, Greece Sister - Ariadni Pantostopoulos of Larissa, Greece He was a veteran of World War I and was receiving benefits from the VA.