Relation to Robert Lester BlumbergSarah Stein Katz, the wife 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 brother of Reuben Amon Blumberg, the father of Robert Lester Blumberg