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