Johann Georg Kaucher, son of Eberhard Kaucher & Eva Eberle, was born on 6 January 1761 in Stein, Baden-Durlach (since 1952 incorporated into Königsbach-Stein) just north of the city of Pforzheim in Baden-Württenberg. Johann Georg, his parents and two older siblings migrated to Denmark (Schleswig-Holstein).
- Eichhorn, Alexander and Jacob & Mary Eichhorn. The immigration of German colonists to Denmark and their subsequent emigration to Russia in the years 1759-1766 (Deiningen, Germany: Steinmeier, 2012): 468.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 36.
- Stein parish records (LDS Film #455304).