Paul David Blum, a cobbler (Schuhmacher), his wife Katharina, and children (Johann Friedrich, age 16; Johann Jonas, age 14) are recorded on an appendix to the 1767 census of Paulskaya in Household No. 102.
A Blum family from Basel is recorded on the 1798 census of Bettinger in Household No. Bt22.
The 1767 census records that Paul David Blum came from the German village of Bitterfeld.
- 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): Bt22.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 370.