In 1771, widow Leopoldina Glück left Boisroux and married Konrad Schwenk in Ernestinendorf. They are recorded on the 1798 census of Orlovskaya in Household No. Or33.
In 1787, Johann Heinrich Schwenk and his family moved from Ernestinendorf to Orlovskaya.
Leopoldina Schwenk and her family are recorded on the 1834 census of Orlovskaya in Household No. 51.
- 1834 Orlovskaya Census (Household No. 51).
- 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): Or33, Mv0267, Mv0572.