Hello Sonja,
My name is John Grumbach and my great-grandfather came from Prettin on the
Elbe. His name was Johann Erdman Grumbach, we think he was born in Prettin May
12, 1815. If you have time would you check to see who his parents were and if
he had any brother or sisters.
Thank you for your help,
John Grumbach
St. Charles Missouri
USA