John Clemmer Hackman - Pedigree | FamilyCentral
 12 Feb 1810 - 26 Oct 1879
 26 Aug 1778 - 29 May 1864
 7 Jun 1781 - 9 Jun 1834
 14 Jun 1754 - 15 Jun 1831
 22 Mar 1758 - 2 May 1846
Family Group
 1693 - 26 Sep 1748
 Abt 1688 - Aft 1748