Courtesy National Gallery of Art
United States
Eastside Genealogical Society - German Interest Group: https://gig.eastsidegenealogicalsociety.org/home
Mid-Atlantic Genealogical Society: www.magsgen.com. This site includes an index to the Pastoral Records of Pastor Frederick W. Geissenhainer of St. Matthews in New York.
Germany
Link to German Genealogical Societies and their webpages: http://wiki-de.genealogy.net/Portal:Vereine
Germanic Genealogical society: https://ggsmn.org/about.php