Johann Daniel Specht, a tailor (Schneider), and his wife Rosina settled in the Volga German colony of Merkel on 28 August 1766. They are recorded there on the 1767 census in Household No. 9.
Daniel Specht and his family are recorded on the 1798 census of Merkel in Household No. Mr13.
The death of Daniel Specht in 1816 is recorded on the 1834 census of Merkel in Household No. 8.
Johann Daniel Specht from Merkel and his family are recorded on the 1857 census of Friedenfeld.
Johann Georg Specht from Merkel and his family are recorded on the 1857 census of Ährenfeld.
The 1767 census records that Johann Daniel Specht came from the German town of Altstein in Pommern (Pomerania).
- 1834 Merkel Census (Households No. 8, 50, 65, 67).
- 1857 Ährenfeld Census.
- 1857 Friedenfeld Census.
- 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): Mr13.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 121.