Johann Philipp Hirschfeld, brother-in-law of Johann Joseph Kelbermater, arrived from Lübeck at the port of Oranienbaum on 29 August 1766 aboard the ship Apollo under the command of Skipper Detlov Merberg.
He settled in the Volga German colony of Pfeifer on 20 August 1767 and is recorded there on the 1767 census in Household No. 54 along with his brother-in-law Joseph Kelbermater.
Peter Hirschfeld from Pfeifer and his family are recorded on the 1857 census of Josefstal in Household No. 73.
- 1857 Josefstal Census (Household No. 73).
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Pf86.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 390.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5097.