I know of no significant movement among Jews to join the Quakers, but there was some interesting relationships between the early Friends and prominent Jews in Holland. As another poster mentioned, Jews were not then permitted to live in England. George Fox, however, believed in evangelizing everyone. So, he didn't hesitate to meet with the Dutch philosopher Benedict Spinoza (1634-77) who, according to one source (http://www.wsu.edu/~tcook/doc/BenedictSpinoza.htm), admired their "communitarian, apolitical pacifism." Fox also did some lobbying to have Jews readmitted to England. My memory is a little hazy on this -- perhaps Tom Hamm knows this better -- but it had more to do with his interpretation of theology than about mere compassion. Apparently, Fox believed that, at the Second Coming, it would be important for Jews to be present for any country to be included. In other words, Jews served as a sort of lucky talisman Salvation-wise. (I don't understand it either.) Mark