Jakob Denner, a weaver (Weber) and farmer (Ackermann), his wife, and two children immigrated to Denmark (Schleswig-Holstein) in 1762.
They joined the migration to Russia in 1765 and settled in the Volga German colony of Galka on 12 April 1766.
Jakob Denner, a farmer, his wife Maria Barbara, and children (Katharina, age 8; Georg, age 2) are recorded on the 1767 census of Galka in Household No. 27.
Georg Michael Denner, his brother Georg Martin, and their families are recorded on the 1798 census of Galka in Household No. Gk58.
The death of Martin Denner [from Galka] in 1824 is recorded on the 1834 census of Franzosen in Household No. 39.
The Eichhorns' research records that Jacob Denner came from Württemberg or the Principality of Hohenlohe. The 1767 census records that he came from Schwellbrunn [?] in Austria. A researcher named Albert reports on the forum of wolgadeutsche.net that this Denner family came originally from Schwöllbronn in Baden-Württemberg.
- 1834 Franzosen Census (Household No. 39, 82).
- 1850 Franzosen Census (Household No. 40, 95).
- 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-258.
- 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): Gk58.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 26.