There are three Herdt families that arrived from Lübeck at the port of Oranienbaum on 8 August 1766 and settled in the Volga German colony of Huck on 1 July 1767.
(1) Johannes Herdt and his family are recorded on the 1767 census of Huck in Household No. 48.
(2) Johann Heinrich Herdt, son of widow Maria Herdt, and his new wife Katharina are recorded on the 1767 census of Huck in Household No. 51. In 1790, Johannes Herdt moved from Huck to Walter.
(3) Heinrich Herdt and his wife Maria are recorded on the 1767 census of Huck in Household No. 52.
Both the Oranienbaum passenger list and the 1767 census record that each of these Herdt families came from the German region of Isenburg.
- 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): Hk08, Hk53, Hk54, Wt081, Mv0965.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 152, 153.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #3117, #3129, #3130.