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View Tree for William M CLAPPWilliam M CLAPP (b. 29 Oct 1877, d. 16 May 1965)

William M CLAPP (son of Edwin O CLAPP and Sarah Sophia PHILLIPS) was born 29 Oct 1877 in Adams, Wisconsin, and died 16 May 1965 in Ephrata, Washington. He married Maude J NILES on 1909.

 Includes NotesNotes for William M CLAPP:
William M "Billy" Clapp is known, as written on his gravestone as "The Father of the Grand Coulee". In 1917 he had the vision of the Columbia Basin irrigation system and prompted building the dam.

William Clapp was admitted to the Bar in Wisconsin and moved from Friendship Village in Wisconsin to Waterville WA in 1905. The trip from Wenatchee took more than 8 hours by six horse stage. He moved to Ephrata in 1910.

More About William M CLAPP and Maude J NILES:
Marriage: 1909

Children of William M CLAPP and Maude J NILES are:
  1. Sarah CLAPP.
  2. +Margaret M CLAPP, b. 1916, d. date unknown.
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