Jews are practitioners of the religion of Judaism or non-religious members of the ethnic group of the same name.
Nazis (and sometimes also other antisemites) regard - and persecute - as Jews, as well as people of Jewish ancestry who do not regard themselves as Jews, even when they have converted to and actively practice Christianity or another religion.
Jews in 1632
Morris and Judith Roth were the only native, modern Jews in Grantville before the Ring of Fire. After Grantville's arrival in the 17th century, different sects of Jews such as the Marrano Abrabanels flocked to the religiously tolerant town in the midst of that century's hostilities towards Jews.