Widower Nikolaus Leonhard, a farmer, settled in the Volga German colony of Hölzel on 5 September 1767. His wife had died during the journey from St. Petersburg to the Volga region. Nikolaus is recorded on the 1767 census of Hölzel in Household No. 59.
The 1767 census records that he came from the German village of Nigausdorf in the Bamberg region.
There are no known surviving male lines of this family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 123.