Johann Martin Wagner (age 12) and his sister Rosine (age 4) are recorded on the 1767 census of Boisroux in Household No. 1 along with their stepfather Johann Gottfried Koch.
Orphan Johann Michael Wagner (age 8) is recorded on the 1767 census of Boisroux in Household No. 7 along with Christoph Reisegerste and his wife. The 1767 census does not record a relationship between the Wagner and Reisegerste families.
Martin Wagner from Boisroux is recorded on the 1798 census of Katharinenstadt in Household No. Ka073.
The 1767 census does not record from where these Wagner children came.
- 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): Ka073.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 139,141.