Georg Krapp, a gardner (Gärtner), his wife Katharina, and son Adam (age 3-weeks) are recorded on the 1767 census of Ober-Monjou in Household No. 34. They had settled there on 17 August 1767.
The 1767 census records that Georg Krapp came from the German village of Geiselbach.
- 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): Om34.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 297.