Relation to Reuben Amon Blumberg Reset Marjorie Ruth Blumberg Katz is Reuben Amon Blumberg's niece. Marjorie Ruth Blumberg Katz, the daughter of Louis Eliel Blumberg, the son of Helman (Halman) Yaakov Blumberg, the father of Reuben Amon Blumberg