and he was Irish!) And what do we know about madness in those times? People could be sent to the madhouse for almost anything, including epilepsy. My mum was sent to a "hospital" as late as 1943 for going out with soldiers when she was 16! It seems that unruly behavior in a teenager was considered a form of mental illness even then! There are certainly any number of clues that could reveal someone as Jewish, but it is in fact mostly in the styling. Wearing a tallis or a kippah clearly marks someone as a Jew. Peyos is also a sign of an orthodox Jew. A long beard may also indicate Judaism. Dress is a little tricky. Without religious accessories, Jews would not have dressed all that differently from others in the East End. At most they might lean more towards formality, but it was completely based on occupation. A Jewish Butcher is not wearing a black suit. A Jewish tailor is. I think that most people in the East End would identify a Jew by language. If a man talked to another man in Yiddish, hes a Jew. And to be brutally honest, there would have been a vibe around Jews. More than just a sense of otherness that we usually get from foreigners. There would have been a million non verbal cues. A man who holds himself slightly apart from gentiles, someone who has a sort of shattered pride, someone not entirely comfortable out in the world,