Orphan Ludwig Eberhardt (age 9) is recorded on the 1767 census of Ernestinendorf in Household No. 22 along with the Johann Arnhold family.
The 1767 census does not record a relationship between the Arnhold and Eberhardt families.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 401.