The way I think is it would have to be somone who knew him back then. It's not a common story they tell. It'sall about Ben Franklin, George Washington, Independence. I wouldn't have ever heard about this if I hadn't found the mug. According to history if you look at the back of a dollar bill there is a Jewish Star, and that was for Hyam Solomon. Who knew! Lol My husband has done major historic rehabs in "Old City" and has never heard of it. If I ask anyone in Philadelphia, I don't think they would know.