Johann Martin Riedel, a copper smith (Kupferschmied), his wife Margaretha, and son Michael (age 3) are recorded on an appendix to the 1767 census of Nieder-Monjou in Household No. 33 along with a note that they relocated to the colony of Katharinenstadt in 1768.
Heinrich Riedel is recorded on the 1798 census of Katharinenstadt in Household No. Ka059. He is presumed to be the son of Johann Martin Riedel.
The 1767 census records that Johann Martin Riedel came from the German village of Kleinlagingen.
- 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): Ka059.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 212.