Johann Heinrich Franck, son of Adam Franck, was born about 1735 in Wirtheim, northeast of Gelnhausen. He married in Gelnhausen on 26 August 1756 to Anna Margaretha Stock, daughter of Martin Stock. They have the following children: (1) Johann Heinrich, born in Gelnhausen 26 July 1756; (2) Maria; and (3) Elisabeth, born about 1762.
They immigrated to Russia, arriving from Lübeck on 19 July 1766 aboard a ship under the command of Jakob Bauer. The parents and daughter Elisabeth made it to the Volga German colony of Pfeifer on 15 June 1767 where they are recorded on the 1767 Census in Household No. 9 as being from Orb (probably Bad Orb, about 4 kilometers east of Wirtheim).
Heinrich Frank is recorded as a widower on the 1798 Census of Pfeifer, living in Household No. Pf58.
Frey, Julius. "Auswanderung aus den Kreisen Gelnhausen und Büdingen im Jahre 1766." Geschichtsblätter für Stadt und Kreis Glenhausen. Herausgeber: Geschichtsverein Gelnhausen, 1965.
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).
Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 379.
Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): Document No. 2623.