I am still new to this research. I have found out however...
Gustav was born in Germany in 1862 and died Jan 31, 1922.
Eva Marie's maiden name was Koppertz. And she was born in Austria.
If you have any further information on either Gustav's lineage or The Koppertz Family, please email me at
purestina@yahoo.comThank you,
Christina M. (Sonak) Gray
PS my grandfather is Henry Alfred Sonak Jr.