Several Sitner/Sittner/Sittler/Sitler individuals mmigrated to the US from South Bohemia (Austria-Hungary, now Czech Republic) around 1900. All of them are related, and I have a plenty of genealogical material on them going o the 1700s.
If anybody is interested in those please let me know.
These Sitners/Sitners are NOT related to the German Sitlers from Pensylvania