Joseph, true sign languages are more associated with cultures or localities than with spoken languages. For instance, in the U.S. there is American Sign Language (ASL), while in Britain there is British Sign Language (BSL). Neither one is called English Sign Language because neither one is based on English. In Israel, there’s ISL, not HSL. To answer the OP, Wikipedia has a list of sign languages, and there’s no mention of Yiddish. There is a moribund Algerian Jewish sign language.
