In the parish records of Fränkisch-Crumbach, Franz Heinrich Ruppel, single man, is included in a list of immigrants. They arrived in Schwab on 12 September 1767 and are listed there on the 1767 Census in Household No. 41.
This 1767 Census records Franz Heinrich Ruppel being from the village of Raibach.
- Mai, Brent Alan and Dona Reeves-Marquardt, German Migration to the Russian Volga (1764-1767) (Lincoln, NE: American Historical Society of Germans from Russia, 2003): 181.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 137.