Philipp Decker, a farmer, and his family immigrated to Denmark (Schleswig-Holstein) in 1762. They joined the migration to Russia, and settled in the Volga German colony of Balzer on 28 August 1765 and are recorded there on the 1767 census in Household No. 7.
The Eichhorn research of the Danish records and the 1767 census record that Philipp Decker came from the German village of Zweibrücken in the Kurpfalz region.
- Eichhorn, Alexander, Jacob & Mary Eichhorn. The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766 (Deiningen, Germany: Drukerei und Verlag Steinmeier GmbH & Co. Kg, 2012): B-254.
- 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): Bz043.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 73.