John A. Duff - Pedigree | FamilyCentral
 22 Aug 1801 - 1892
 Jun 1772 - 15 Aug 1855
 Abt 1776 - 15 Aug 1849
 Abt 1746 - 15 Mar 1781
 Abt 1750 - Abt 1785
Mary Combs
 md. 16 Jan 1823
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