Sebastian Trumpf and his family are recorded on the 1798 census of Hockerberg in Household No. Hb14.
In 1793, Johann Jakob Trumpf moved from Hockerberg to Bettinger.
Jakob Trumpf from Hockerberg and his family are recorded on the 1798 census of Bettinger in Household No. Bt18.
- 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): Bt18, Hb14, Mv0891.