Johann Siegmund Pflaumer was born in Eppingen on 16 February 1724. He married on 4 February 1749 to Anna Katharina Frey.
In 1761, the Pflaumer family moved to Denmark (Schleswig-Holstein). Siegmund, his wife, and their children immigrated to Russia, arriving in Dobrinka on 29 June 1764. They settled in Dobrinka where they are recorded on the 1767 Census in Household No. 9.
- Clausen, Otto. Chronik der Heide- und Moorkolonisation im Herzogtum Schleswig, 1760-1765 (Husum: Husum Druck- und Verlagsgesellschaft, 1981): 728.
- Lang, Gerhard. German Colonists of Denmark on the Volga.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 315.