Johann Friedrich Rube, his wife, and 3 children immigrated to Denmark (Schleswig-Holstein) arriving in Fridericia on 5 July 1760.
They are last recorded in the Danish colonies on 26 April 1763. Son Johann Adam Rube and his family joined the migration to Russia and settled in the Volga German colony of Schilling. They are recorded there on the 1775 census in Household No. 3.
The Christoph Rube family is also recorded on the 1775 census of Schilling in Household No. 34 along with a note that their house had burned down in 1768.
Christoph's relationship to Johann Adam is not recorded.
- 1775 Census of Schilling (No. 3 & 34).
- 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-1382.
- 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): Sg027, Sg035.