Johann Ludwig Konrad (age 3) is recorded on the 1767 census of Warenburg in Household No. 124 along with his stepfather Johannes Berger.
The 1767 census does not record from where Johann Ludwig Konrad came.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 340.