I appreciate the link, there may be some good clues in there, if not a specific name match. More specifically, I'm mainly concerned with the Frederitzi spelling since Frederici is a more recent, artificial change. Thanks again, and any further help from anyone is still appreciated.

Thank you for reading this. Any help would be appreciated. My Last name is Frederici and, recently, I discovered that it was spelled Frederitzi until probably somewhere in the mid 1800s after coming to the US. They previously lived in Alsace-Lorraine, France, and apparently had lived in that region ...