The following persons and institutions recommend our research services:

• State Archive Hamburg, Germany
• National Archives in Washington, DC, USA
• BallinStadt Emigration Museum, Hamburg, Germany
• Deutsches Auswandererhaus (German Emigration Center) in Bremerhaven, Germany
• Ellis Island Immigration Museum in New York, USA
• Bundesarchiv (Federal Archive) Berlin, Germany
• Lutheran St. Michaelis parish in Hamburg, Germany
• Institutio Martius-Staden in São Paulo, Brazil
• Leo Baeck Institute, New York, NY, USA
• Siemens Historical Institute, Munich, Germany

• Alexandra Orton, Producer, Who Do You Think You Are? USA
• Celia Tait, Producer, Who Do You Think You Are? Australia
• Christine Neubauer, German Actress
• Armin Rohde, German Actor

Memberships (selection)

• Association of Professional Genealogists, USA
• Association of German Speaking Professional Genealogists, Hamburg, Germany (Chairwoman)
• American Club of Hamburg e.V.
• Genealogische Gesellschaft Hamburg e.V. (Genealogical Society Hamburg) in Hamburg, Germany
• Verein für Computergenealogie e.V. (Society for Computer Genealogy)
• Verein für Mecklenburgische Familien- und Personengeschichte e.V. (Society for Family and Individual History of Mecklenburg) in Mecklenburg, Germany
• Die Maus, Gesellschaft für Familienforschung e.V. (Society for Family Research) in Bremen, Germany
• Pommerscher Greif e.V., Society for Pomeranian family and place history
• Jewish Genealogical Society, Inc., New York