Caspar Boll and his wife Ursula arrived in Russia with six children. The baptisms of five of those children are recorded in the records of the Protestant Reformed Church of Weidenthal: Conrad, born 30 April, baptized 4 May 1749; Catharina Margaretha, born 19 February, baptized 22 February 1752; Daniel, born and baptized 16 June 1754; Anna Maria, born 22 January, baptized 23 January 1757; and Johann Jacob, born 3 June and baptized 6 June 1762. Caspar and Ursula's marriage and the baptism of their oldest child (Catharina) were not found in the Weidenthal records.
The family arrived in Russia on 22 July 1766. They settled in Huck and are reported there on the First Settlers List in Family #67. The family as reported on the First Settlers List does not include the oldest daughter Catharina, but does include an infant son Johann Heinrich, who must have been born during the journey.
According to the movement tables in the 1798 Census, Johann Heinrich Bohl moved from Huck to Reinwald.
- Parish records of the Protestant Reformed Church of Weidenthal on Archion.de and Family Search indexes of same
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): p. 168
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767; Band 2. (Göttingen: Göttinger Arbeitskreis, 2001): p. 156
- 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): Volume 2, p. 1096