+--John MCILVAIN  (ABT 1610-)
         +--John MCILVAIN  (ABT 1635-21 SEP 1669)
         |  +--Anna CORRIE  (-FEB 1632)
      +--John MCILVAIN  (1656-1735)
      |  +--Ann CUNNINGHAM 
   +--Robert MCILVAIN  (-10 AUG 1770)
   |  +--Sarah CLARK  (ABT 1660-)
+--Andrew MCILVAIN  (1744-1798)
|  +--Mary DUFFIELD  (-ABT 1800)
Andrew MCILVAIN  (1790-)
+--Margaret WORKMAN  (12 DEC 1757-14 DEC 1836)