Andreas Holz, a farmer, his wife Katharina, and son Andreas (age 5) are recorded on the 1767 census of Boisroux in Household No. 3. They had settled there on the 7 June 1767.
In 1771, Louisa Holtz moved from Boisroux and married Ludwig Zahn in Biberstein. She took her son Gottfried with her.
The 1767 census records that Andreas Holz came from the German region of Zerbst.
- 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): Mv0268.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 140.