Hans Dietrich and his family arrived from Lübeck at the port of Oranienbaum on 15 September 1766 aboard a ship under the command of Fyodor Fyodorov.
They settled in the Volga German colony of Preuss on 16 August 1767. They are recorded there on the 1767 census in Household No. 118.
In 1788, Nikolaus Dietrich moved from Preuss to Seelmann.
The Oranienbaum passenger list records that Hans Dietrich was a mason while the 1767 census records that he was a farmer.
The 1767 census records that Hans Dietrich came from the German village of Dreuschendorf in the Bamberg district.
- 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): Ps76, Sm10, Mv2336.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 435.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #7146.