Finding Places. The German Ortsbuch by Michael Rademacher
Name Adoption Lists: (See also JewishGen All Germany Database)
Jewish communities & cemeteries in southern Germany & Switzerland
Name Adoptions from Posen – alphabetical
Name Adoptions from Posen 1835
The Book of Jewish Citizens of Berlin
IAJGS Cemetery Project
Steinheim Institute epidat database of Cemetery inscriptions
JewishGen All Germany Database
Gemeindeblatt der Jüdischen Gemeinde zu Berlin