Johann's sister Margarete Berent (09.07.1887-23.06.1965) lived with them in Berlin and survived by emigrating to NY in 1940. She was the first woman attorney in Prussia. See: wikipedia-Margarete Berent
Addition
Johann's sister Margarete Berent (09.07.1887-23.06.1965) lived with them in Berlin and survived by emigrating to NY in 1940. She was the first woman attorney in Prussia. See: wikipedia-Margarete Berent