Widow Rosina Zwenger and her children immigrated to Denmark (Schleswig-Holstein). Her son Johannes arried in Flensburg on 2 February 1762. Rosina and two additional children (Christina, age 19; Johann Georg, age 14) arrived in Flensburg on 12 June 1762.
They left the Danish colonies on 22 April 1765 and joined the migration to Russia.
Rosina settled in the Volga German colony of Kamenka on 6 July 1765. Her son Johann, a farmer, and his wife Christina settled there on 28 April 1766. They are recorded on the 1767 census of Kamenka in Households No. 41 and 46, respectively.
In 1787, Mattias Zwenger left Kamenka.
In 1795, Georg Zwenger and his family moved from Kamenka to Franzosen.
The 1798 census of Volmer records the Johann Georg Zwenger family from Kamenka in Household No. Vm37. He is recorded on the 1834 census of Husaren in Household No. 67.
In 1820, several Zwenger families moved from Husaren to Hildmann.
The Eichhorns and the 1767 census record that this Zwenger family came from the German region of Baden-Durlach.
- 1834 Hildmann Census (Households No. 1 & 64).
- 1834 Husaren Census (Household No. 67).
- Eichhorn, Alexander, Jacob & Mary Eichhorn. The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766 (Deiningen, Germany: Drukerei und Verlag Steinmeier GmbH & Co. Kg, 2012): B-1856, B-1857.
- 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): Vm37.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 226, 267.