I have looked at the familysearch.com records for variations of seblonka/scheblonka in both Slovakia and Poland (Galicia). They then centered in the Neu Sandec to Rzeszow area. Most of the dates are in the early 19th century. I will try to find variations in the names over time. These are some of the variations:
I will have to check how these variations would have been registered in the Vienna Civil Registrations. My guess is that Anna Scheblonka would not have come to Vienna as a single woman.