Jonas Lundgrün and his family settled in the Volga German colony of Kratzke on 7 August 1766. They are recorded there on the 1767 census in Household No. 31.
In 1793, Johannes Lundgrün and his family moved from Kratzke to Stahl am Tarlyk.
The 1767 census records that Jonas Lungrin came from the Swedish town of Stockholm.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): St05, Mv1428.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 2 (Goettingen: Der Göttinger Arbeitskreis; 2001): 457.