Heinrich Hammel from Kolb is recorded on the 1798 census of Hussenbach in Household No. Hs128.
The widow and children of Johannes Hämmel are recorded on the 1798 census of Kolb in Household No. Ko46.
- 1834 Hussenbach Census (Households No. 94, 120, 224).
- 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): Hs128, Ko46.