My Great Grand-Father name was Yaakov Yosef (Jacob Josef)we have evryone from him in our family tree I know the name of his parents and siblings. his father Chaim Bentzion (Haim benzion might have live around the same time as your Great Grand-father Jacob. his siblings have descendants in America.
Chaim Bentzion father name is Yehudah Leib (Judah Leib) His faters name was Yitzchak (Iaasik) and his fathers name was Dov Ber
My Great Grand-father moved withed his family to england from Russia