Anna Maria Cronaguis (age 18) and her sister Louisa (age 15) are recorded on the 1767 census of Katharinenstadt in Household No. 27 along with their mother Anna and stepfather Nikolaus Derarotier.
The 1767 census does not record from where the Cronaguis family came.
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): 282.