Widower Jakob Reinhardt, a locksmith (Schlosser), and his son Heinrich (age 2-months) are recorded on an appendix to the 1767 census of Boisroux in Household No. 61.
Margaretha Reinhardt née Weigand, widow of Jakob Reinhardt, and her children are recorded on the 1798 census of Meinhard in Household No. Mn02.
The 1767 census records that Jakob Reinhardt came from the German village of Kumpelstadt.
- 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): Mn02.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 173.