Johann Caspar Schwarz was born 21 September 1726 in Ruttershausen, north of Giessen. He married across the river in Staufenberg on 22 February 1752 to Anna Maria Heibertshausen. She had been baptized there on 23 September 1731. They had three children: (1) Maria Margretha, born 13 June 1753; (2) Johann Heinrich, born 8 October 1755; and (3) Johann Ludwig, born 17 August 1757.
Johann Caspar died 25 October 1757 and Anna Maria Heibertshausen remarried 18 January 1759 to Johann Heinrich Jung. He was born 5 March 1734 in Staufenberg. They had three children, all in Staufenberg: (1) Johannes, born 16 January 1760; (2) Johann Magnus, baptized 26 January 1762; and (3) Johann Caspar, baptized 3 June 1764.
The combined Jung/Schwarz family immigrated to Russia arriving from Lübeck in Oranienbaum on 12 September 1766 aboard the English frigate Love & Unity under the command of skipper Thomas Fairfax.
The youngest Jung son (Johann Caspar) evidently died while they wintered in Oranienbaum because he is not on the transport from Oranienbaum to the Volga colonies the following spring. The oldest Jung son, Johannes died during the trip from Oranienbaum. The parents, son Magnus Jung, and the three Schwarz stepchildren arrived on 3 August 1767 in Ernestinendorf where they are recorded on the 1767 Census in Household No. 30.
In 1768, they relocated to the colony of Biberstein. Ludwig & Heinrich Schwartz are still living in Biberstein in Households Nos. Bb37 & Bb40, respectively, on the 1798 Census.
- 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).
- Mai, Brent Alan, trans. & ed. Transport of the Volga Germans from Oranienbaum to the Colonies on the Volga: 1766-1767 (Lincoln, NE: American Historical Society of Germans from Russia, 1998).
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 403.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): 342.