I have some information about Y.D that is pretty unknown (doesn't appear in
Daat Kedoshim, Unbroken Chain nor in any other rabbinical genealogy
material). Y.D had a son Michael RABINOWITZ of Shereshew. This Michael had a
few children in Brest-Litovsk one of them Chaim Zalman RABINOWITZ. Chaim
Zalman had a son Zeev Wolf RABINOWITZ whowrote two books Shaarei Torat Eretz
Yisrael on the Jerusalem Talmud and Shaarei Torat Bavel on the Babylonian
Talmud. I have further information (like complete paternal ancestry 9 or 10
generations back). I'd be glad to supply further information.