Relation to Ida (Chaya) Etel Ethel TenenbaumRobert Ellis Katz, the father of Ellis Robert Katz, the husband of Marjorie Ruth Blumberg Katz, the daughter of Louis Eliel Blumberg, the brother of Alice Blumberg Epstein, the wife of Abraham Abe "Teddy" Tenenbaum, the son of Ida (Chaya) Etel Ethel Tenenbaum