Three Kolebers were from the Volga German colony of Hussenbach. They are believed to be siblings: Gottlieb, Katharina, and Konrad.
In 1788, widow Eva Barbara Koleber and her children moved from Hussenbach to Kratzke.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Hs031, Kr12, Mv1052.