+--Eaton POWELL 
   +--Warren Harp POWELL  (-1 AUG 1873)
   |  +--Mary CAUSEY 
+--John Wesley POWELL  (14 AUG 1869-APR 1906)
|  +--Mary C VAUGHAN  (1830-19 OCT 1914)
Alta Zona POWELL  (7 SEP 1891-31 AUG 1966)
+--Judith Ellen WARREN  (25 APR 1876-JUN 1903)