The Johann Georg Reisig family immigrated from Swabia to Denmark (Schleswig-Holstein) in 1761. Eichhorn records that he may have been from Gemmingen, which is north of what is historically considered to be Swabia. He died in Denmark sometime in 1762-63.
In 1763, at least 3 of his children joined the immigration to Russia. They do not show up on any of the 1767 censuses that are available. Since his daughter Eva Maria (who married a Kaiser) is living in Grimm, perhaps they settled there first (the 1767 census for Grimm has not been located). Two sons, Jakob and Bernhard, are living in Shcherbakovka by the time of the 1798 census.
- Eichhorn, Alexander, 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): 553.
- 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): Gm76, Sv45, Sv46, Sv55.