Johannes Hoffman and Julianna Schmolbach had seven children according to the Schwickartshausen parish records, all born in Eckartsborn: Maria Catharina, born 17 July and baptized 21 July 1748; Anna Catharina, born 4 October, baptized 7 October 1749; Magdalena, born 6 February, baptized 9 February 1753 (died in 1759); Johann Heinrich, born 18 February, baptized 21 February 1756; Andreas, born 19 July, baptized 22 July 1759; Johann Conrad, born 19 July, baptized 22 July 1762 (died 16 October 1762); and Gertraud, born 31 August, baptized 2 September 1763.
The family arrived in Russia on 15 September 1766. It appears that Julianna and several of their children died during the journey to the villages. When the family arrived in Frank, Johannes is married to Anna Catharina (last name unknown) and the family includes a child named Johannes, who is likely Anna Catharina's child from her first marriage. They are reported on the Frank First Settler's List in Family #73.
- Parish records of Schwickartshausen on Archion.de.
- Stumpp, Karl. The Emigration from Germany to Russia in the years 1763 to 1862. (Lincoln, NE: American Historical Society of Germans from Russia, 1982), p. 135
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010) p. 383
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): p. 430