+--JOHN HENRY CLAPPER  (ABT 1768-1809)
+--JACOB CLAPPER  (ABT 1789-1865)
|  +--JULIANNA    (-1817)
JULIA ANN CLAPPER  (3 Apr 1834-6 Nov 1908)
|  +--LEWIS KEISTER 
+--EVA SUSANNA KEISTER  (2 Jul 1798-21 Feb 1867)
   +--CATHERINE MARGARETHA