Michael Kaltenberger and his wife Rosina immigrated from Denmark (Schleswig-Holstein) arriving in the city of Schleswig on 9 May 1761. They are last recorded among the Danish colonies on 12 January 1765.
They joined the migration to Russia and settled in the Volga German colony of Grimm. They are recorded there on the 1775 census in Household No. 61.
The Eichhorns record that Michael Kaltenberger came from the German region of Baden-Durlach.
- 1775 Census of Grimm (No. 61).
- 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-773.
- 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): Gm025.