Now have more information on my great grandparents. My great grandfather David Adler emigrated from Bucherest, Romania. His wife's name was Ethel Greenberg. David had a brother Isadore H. Adler and perhaps another brother Sendir Adler. They settled in Pittsburgh. David and Sendir were given referencesfor their naturalization certificates by Wolf Hilenbrand, a storekeeper in Pittsburgh. Seeking more info.