An article by Wilhelm Funk records the following going to Russia:
Peter Bonaventura Lachert, a cobbler (Schuhmacher), son of the deceased Joh. Lachert, a master cobbler (Schuhmachermeister) in Manheim, Catholic, & Marg. Schnabel, daughter of the deceased Mich. Schnabel, a baker (Becken) in Wittelshofen near Dünkelsbühl, Lutheran, were married 30 April 1766 in the Lutheran Church in Wöhrd.
Peter Bonaventura Lachet [sic], a cobbler (Schuhmacher), and his wife Margaretha are recorded on an appendix to the 1767 census of Boisroux in Household No. 7 along with a note that they resettled to the colony of Schaffhausen in 1768.
The 1767 census records that Peter Bonaventura Lachet [sic] came from the German village of Mannheim in the Kurpfalz region.
There are no known surviving male lines of this family among the Volga German colonies.
- Funk, Wilhelm. "Deutsche a Is russische Colonisten: ausgezogen aus dem Wöhrder Traubuch 1766/67." Blätter für fränkische Familienkunde, 1:3 (1926): 101-107.
- Mai, Brent Alan and Dona Reeves-Marquardt. German Migration to the Russian Volga (1764-1767) (Lincoln, NE: American Historical Society of Germans from Russia, 2003): #787.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 163.