Karl Lauer, a craftsman (Handwerker), and his wife Anna Maria are recorded on the 1767 census of Schwed in Household No. 11. They had settled there on 1 July 1766.
The 1767 census records that Karl Lauer came from the Swedish town of Breslow. His wife Anna Maria is recorded as coming from the German village of Breslau in the region of Holstein.
There are no known surviving male lines of this Lauer family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Der Göttinger Arbeitskreis, 2008): 142.