Karl Zengraf, a farmer, his wife Elisabeth, and daughter Maria (age ½-year) arrived from Lübeck at the port of Oranienbaum on 13 September 1766 aboard the hooker Die Jungfer Dietrika under the command of Skipper Christian Korsholm.
They settled in the Volga German colony of Pfeifer on 20 September 1767 and are recorded there on the 1767 census in Household No. 105 along with 5-week-old Anna Katharina.
The 1767 census records that Karl Zengrak came from the German village of Werdenberg in the Würzburg region.
- 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): Pf07.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 402.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5726.