Johann Burkhardt Bock, son of Johann Berghard Bock & his first wife Anna Margaretha Waller, was born 13 September 1745 (baptized 15 September 1745). His half-sister Anna Christina Bock, daughter of Johann Berghard Bock & his second wife Anna Margaretha Braun, was born 26 January 1753 (baptized 28 January 1753). They were both baptized at the Lutheran Church in Altenhaßlau. Johann Burkhardt Bock married Anna Magdalena Stock in 5 March 1766 in Büdingen, and Anna Christina Bock married Johann Friedrich Krebs 7 March 1766 in Büdingen. Both couples are recorded in the 1767 census of Frank.
- Parish records of Altenhaßlau (Archion.de).
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 422.