Christian Weldi and his family immigrated to the Volga German colony of Dietel from the German village of Rheinbischofsheim, today a suburb of Rheinau in Baden-Württemberg. They are recorded on the 1767 census in Dietel in Household No. 14.
- Parish records of Rheinbischofsheim.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 285.