Johann Heinrich Idt was born about 1729 in Ruppertsburg, southwest of Laubach. He married Anna (surname unknown), and they had at least six children: (1) Johann Konrad, born about 1751; (2) Anna Elisabeth, born about 1753; (3) Anna Elisabeth, born about 1755; (4) Anna Barbara, born about 1758; (5) Johannes, born about 1762; and (6) Anna Margaretha, born about 1766.
The immigrated to Russia, arriving from Lübeck at the port in Oranienbaum on 29 August 1766 aboard a ship under the command of skipper Johann Skott. They arrived in the Volga German colony of Krasnoyar on 20 July 1767. His wife Anna died after their arrival in Oranienbaum and before arrival in Saratov, because on the 1767 Census of Krasnoyar, Johann Heinrich is recorded with a new wife, Susanna Elisabeth, in Household No. 71.
On the 1798 census of Krasnoyar, son Konrad is recorded in Household No. Ks071, son Johannes at Ks109 (but living in Katharinenstadt). Daughter Maria Elisabeth is recorded in Katharinenstadt in Household No. Ka108, and daughter Margaretha is recorded in Mariental at Household No. Mt76.
- Die Geschichte der Wolgadeutschen vom Vogelsberg zur Wolga (Alsfeld, Wiesbaden: Die Albert-Schweitzer-Schule, 1990).
- 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 2 (Göttingen: Göttinger Arbeitskreis, 2001): 434.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): Doc. No. 3755.