+--THOMAS William BIEBERBACH  (1823-)
+--WILLIAM Frederick BIEBERBACH  (1864-1898)
PaulRaymond BIEBERBACH 
|  +--CARL F. KRETZHMER  (1815-1868)
+--ANNA Emelia KRETZHMER  (1866-1955)
   +--MARY Magdalena UNKNOWN.  (1823-1895)