Margaretha Dreher, widow of an unnamed craftsman (Handwerker), and her son Franz Jakob [surname believed to be Heroneme] settled in the Volga German colony of Mariental on 15 July 1766. They are recorded there on the 1767 census in Household No. 83.
Franz Jakob Heroneme and his family are recorded on the 1798 census of Mariental in Household No. Mt39.
The death of Jakob Hieronime in 1819 is recorded on the 1834 census of Mariental in Household No. 61.
- 1834 Mariental Census (Household No. 61).
- 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): Mt39.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 116.