Orphan Walburgis Martin (age 17) is recorded on the 1767 census of Bettinger in Household No. 1 along with the Karl Christoph Bettinger family. The 1767 census does not record a relationship between the Martin and Bettinger families.
The 1767 census does not record from where Walburgis Martin came.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 1 (Goettingen: Der Göttinger Arbeitskreis, 1999): 131.