From the classic sources (Belinson: https://books.google.ca/books?id=leREAAAAYAAJ&pg=RA2-PA170, among others), clearly identical with Yaakov Hillel Ettinger - but the ancestry is wrong; there is nothing to indicate that his father's name was Avraham or that he was closely related to the Rabbi Boruch Mordechai Ettinge, A.B.D. Babruysk branch. What are the sources?