I tried emailing you directly, but my mail bounced back with a host unknown server problem.
I have Johann Christian Hartung (b. 10 Jul 1794) married (16 Jul 1818 Schallenburg, Sachsen, Prussia) to Justine Friedericke Schroeder (b. 1793).His parents are Hiob Gotfried Hartung (married 11 Oct 1793) and Anna Marie Herzog.My source is the LDS Church IGI computer system at the local FHL.Do you have more information?
Who do you descend through?Feel free to email me directly.