Johann Christian Seifert, a craftsman (Handwerker), and his family immigrated to Denmark (Schleswig-Holstein) arriving in the city of Schleswig on 6 June 1761. They are last recorded in Denmark on 22 November 1765.
The Seifert family joined the migration to Russia and settled in the Volga German colony of Grimm. They are recorded there on the 1767 census in Household No. 27.
Siblings Jakob Friedrich Seifert (age 20), Christian (age 17), and Augusta (age 14) and their mother Augusta Maria are recorded on the 1775 census of Grimm in Household No. 111.
The 1798 census of Shcherbakovka records son Jakob Friedrich Seifert and his family in Household No. Sv02.
The Eichhorns record that Johann Christian Seifert came from the Margravate of Baden-Durlach. The 1767 census records that they came from the German region of Durlach.
- 1775 Grimm Census (Household No. 111).
- Eichhorn, Alexander, Jacob & Mary Eichhorn. The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766 (Deiningen, Germany: Drukerei und Verlag Steinmeier GmbH & Co. Kg, 2012): B-1570.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Gm040, Sv02.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 76.