Max Bernheimer died in March 1933. In April 1939 his widow Karoline managed to flee to New York City, USA. From the end of 1938 onwards Ernst and his wife Berta Bernheimer applied in vain for permissions to emigrate. It was not until February 1941 that the whole family succeed to emigrate to Cuba.
Otto Bernheimer and his sons were deported to Dachau concentration camp during the pogrom in the night of 9/10 November 1938. Together with his wife Charlotte, and their sons, Ludwig and Kurt, he managed to flee to Venezuela in April 1939.
Under the direction of Georg Neuner the „Städtische Musikinstrumentensammlung“ bought instruments from the art and antiques dealer in 1940. These includes a variety of different bells, drums and string instruments from Persia, China and Central Asia, as well as transverse trumpets from Africa. When the music instrument collection was transferred to the Münchner Stadtmuseum in 1958 the instruments became an integral part of the museum's holdings. The seventeen musical instruments were returned to the descendents of the Bernheimer family in 2019.