Peter Antonius di Roma, a arborist of mulberry trees (baut Maulbeerbäume), his wife Margaretha, and daughters (Gartenika?, age 19; Wilhelmine, age 1) are recorded on the 1767 census of Katharinenstadt in Household No. 129. They had settled there on 23 July 1767.
The 1767 census records that Peter Antonius di Roma came from the town of Venice in Italy.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 304.