From left are Jeff Kopolow, Jacqueline Yocheved Rivkin Rubin, Rabbi Ben Tzion Rivkin, Rabbi Menachen Greenblatt of Agudas Israel and Rabbi Yosef Landa of Chabad of Greater St. Louis. Jacqueline Rubin and Rabbi BenTzion Rivkin, children of Rabbi Sholom and Rebbetzin Paula Rivkin, attended the siyum last week.