Relation to Reuven BlumbergIrving Katz, Jr., the son of Irving Katz, the brother of Robert Ellis Katz, the father of Ellis Robert Katz, the husband of Marjorie Ruth Blumberg Katz, the daughter of Louis Eliel Blumberg, the son of Helman (Halman) Yaakov Blumberg, the son of Max (Mordkhel) (Mordecai) Blumberg, the son of Reuven Blumberg