Kaspar Bös, a farmer, his wife Margaretha, and children (Johannes, age 16; Elisabeth, age 14) are recorded on a list of Beauregard recruits attached to the 1767 census in Household No. 126. A note indicates that the family relocated to the colony of Wittmann in 1768.
In 1785, Johann Bös and his brothers moved from Wittmann to Ober-Monjou.
The 1767 census records that Kaspar Bös came from the German village of Rebsdorf.
- 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): Om07, Om54, Mv3012.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 374.