Hans Stoltz was a shy immigrant from Holland. Before immigrating after WWII, he was an aspiring actor and had been studying nuclear physics, which he hid from the Nazis.  Penney said that Hans once flawlessly recited a scene from Hamlet, in Dutch, for her.  Additionally, he is said to have been a stamp dealer selling stamps to German officers in order to collect information to provide the Dutch resistance.  During this part of his life, he is said to have met Audrey Hepburn, who also was part of the resistance.  After the war, he went to work for auction house Edgar Mohrmann & Co., founded in 1929.  After leaving Holland, he moved to Brazil for a time, then, in 1964, to the United States, where he became a vice president at Robert A Siegel Auctions.  In 1975, he moved to St. Louis and opened a stamp store at 34 North Gore in Webster Groves.  Hans was inducted into the American Stamp Dealer Association Hall of Fame and was a winner of St. Louis Expo’s Elizabeth Pope Award in 2003.