Johann Peter Freiburg, a leather worker (Lederarbeiter), and his wife Maria Elisabeth settled in the Volga German colony of Kratzke on 7 August 1766. They are recorded there on the 1767 census in Household No. 7.
The 1767 census records that Johann Peter Freiburg came from the Finish village of Åbo.
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 (Goettingen: Der Göttinger Arbeitskreis; 2001): 451.