Johann Matthias Speldecker, a farmer, and his family immigrated to Denmark (Schleswig-Holstein) in 1761.
They joined the migration to Russia settling in the Volga German colony of Shcherbakovka on 15 June 1765. They are recorded there on the 1767 census in Household No. 17. In 1788, Friedrich Speldecker moved from Shcherbakovka to Holstein.
The Eichhorn research records that Matthias Speldecker came from the German region of Württemberg. The 1767 census records that Martin [sic] Speldecker came from the German village of Obereisesheim.
- 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-1608.
- 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): Ho14, Sv26, Mv2769.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 249.