https://mappingthelives.org/bio/1386f6c6-bfa1-4b2b-9e70-0639c5043d42?language=en
https://www.alemannia-judaica.de/nierstein_synagoge.htm
his wife, Stella https://www.myheritage.com/research/record-11006-107974773/stella-greenbaum-in-1950-united-states-federal-census?tr_id=m_tskk5wgq6x_b97273k399
Ernst Alfred Gruenebaum (1899-1987) - Find a Grave Memorial