+--CHRISTIAN ACKER  (1816-1877)
HENRY ACKER  (1850-1931)
|        +--JOHN HENRY CLAPPER  (1699-ABT 1760)
|     +--HENRY I CLAPPER  (ABT 1718-1796)
|     |  +--MARY SWANK  (1702-1752)
|  +--LUDWIG CLAPPER  (1769-1825)
|  |  +--CHRISTENA    (ABT 1726-1810)
+--MARGARET PEGGY CLAPPER  (1819-1882)
   |  +--JACOB STIFFLER 
   +--ELIZABETH BRUMBAUGH  (15 Oct 1777-26 Sep 1865)
      +--ANNA MEYER