I am looking for the parents of Isaac W. Zimmerman Who was born in Sept 1806 near Orwigsburg in Schuylkill County, Penn. Isaac moved to Spring Grove Twp., Green County, WI and was married to Elizabeth Drum. They had 9 Children-George Washington., Benjamin, Henry, Sarah Ann, Elizabeth, Lavina, Rebecca, Esther, and Catherine Gertude. We have a very detailed family tree formed from Isaac on, but have never been able to verify his parents. If anyone can help we would probably be able to trace our family back to one of four brothers who came to the US from Germany in 1730-1731 (Abraham, Jacob, Isaac and Sebastian.