Mary Knox Duff - Pedigree | FamilyCentral
 17 Dec 1801 - 26 Oct 1815
 25 Jul 1770 - 25 Jan 1857
 29 Jul 1777 - 7 Nov 1841
 Abt 1746 - 19 Jan 1825
 1752 - 1799
 1746 - 1822
 Abt 1720 - 17 May 1796
 1722 - Aft 1796
 Abt 1720 - 17 May 1796
 1722 - Aft 1796
 Abt 1700 - 1780
Family Group
 Abt 1700 - 1780
Family Group
Nathaniel H. Duff
 md. 3 Oct 1841
  Children