Joachim Schäfer, a farmer, and his wife Katharina are recorded on an appendix to the 1767 census of Boisroux in Household No. 10.
Joachim Schäfer, his wife Katharina Losarin [?], and their family are recorded on the 1798 census of Wittmann in Household No. Wm08.
[This Katharina Losarin may be recorded in a marriage in Lübeck before leaving for Russia. Johann Friederich Küschauer & Margaretha Catharina Lesso were married on 9 May 1766 in the Lutheran Cathedral (Evangelische Kirche Dom) in Lübeck.
The 1767 census records that Joachim Schäfer came from the German village of Schönfeld.
- 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): Wm08.
- Mai, Brent Alan and Dona Reeves-Marquardt, German Migration to the Russian Volga (1764-1767) (Lincoln, NE: American Historical Society of Germans from Russia, 2003): #149.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 164.