Friedrich Sitzenstock and his family are recorded on the 1798 census of Lauwe in Household No. Lw05.
Friedrich's son Paul and his family are recorded on the 1834 census of Lauwe in Household No. 7.
- 1834 Lauwe Census (Household No. 7).
- 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): Lw05.