There was a posting about the Franz Schubert's series
for Mecklenburg-Strelitz. Forgive my ignorance but I
have never heard of this.
Franz Schubert produced an amazing body of genealogical work for the areas
of Mecklenburg, Vorpommern and Hinterpommern. A webpage listing some of his
publications can be found at Karin Schoepke's web page:
As far as I know they are all in German. Some of his works, such as the
Index to the 1819 Mecklenburg census are available through your local LDS
Family History Center on microfilm and microfiche.