When you are raised by parents who experienced World War II in Germany you get told a lot of stories about what went down during that period. One of those stories was how the German officials came and vetted your family to see if they had any Jewish blood in them. My Father had a close call when it was found out that his Great Grandfather’s first name was David, which being a Jewish name had raised a flag. It turns out not to be the case so his family was spared a trip to the gas chambers. Although given that my Father later develops a form of leukemia primarily found in eastern European Jews, they might have been wrong about that.