Isidor Heinrich Grünberg was a son of Bernard Grünberg and Ernestine Meisner. He married Hilde Zwettels in Berlin during the 1920s. He and his wife had a daughter, Stefanie, who was known as Steffi.
The following documents remain from them:
an excerpt from the Lvov (the current name of Lemberg) register of births for Isidor Heinrich Grünberg
a certificate of his circumcision by the mohel R.F…
Person is in the National Database of Victims of Persecution