Franz Dulson and his family arrived from Lübeck at the port of Oranienbaum on 30 May 1766 aboard the pink Lopamink under the command of Lieutenant Kryukov.
They settled in the Volga German colony of Preuss on 12 May 1767. They are recorded there on the 1767 census in Household No. 8.
In 1789, Georg Adam Dulson moved from Preuss to Seelmann.
The Oranienbaum passenger list records that Franz Dulson was a farmer while the 1767 census records that he was a mason (Maurer).
The Oranienbaum passenger list records that Franz Dulson came from the Bamberg region while the 1767 census records that he came from the German village of Bommersheim in the Kurmainz.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Ps15, Sm12, Mv2347.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 3 (Goettingen: Der Göttinger Arbeitskreis; 2005): 415.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #391.