Andreas Weilert, a farmer, and his family settled in the Volga German colony of Mariental on 16 June 1766. They are recorded there on the 1767 census in Household No. 1.
The 1798 census of Katharinenstadt records Kaspar Weilert from Mariental in Household No. Ka087.
Kaspar Weilert and his family are recorded on the 1834 census of Katharinenstadt in Households No. 148 & 152.
The 1767 census records that Andreas Weilert came from the German district of Freiburg.
- 1834 Katharinenstadt Census (Households No. 148, 152).
- 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): Ka087.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 95.