David Trübelhorn, a farmer, and his family immigrated to Denmark (Schleswig-Holstein), arriving in Flensburg on 15 May 1762.
They joined the migration to Russia and settled in the Volga German colony of Beideck where they are recorded on the 1775 census in Household No. 39.
- 1775 census of Beideck (No. 39).
- 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-1707.
- 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): Bd31, Bd41.