Don Claypool published a book on this Starr family early last summer -- "The German Starr/Stoehr/Stöhr Family". He gave all rights to the IGHS Library (Illiana Genealogical & Historical Society) in Danville, IL.
At this point, we don't know where in Germany the family came from. Research continues on this family.
Feel free to contact me via email.
-vicki