He was Assistant Chief of the Department from 1896 to 1902 , and then from 1910 to 1914 .
In 1891 he was a member of the 1891 Death Valley Expedition and its leader for its first 3 months .
member was member   of the Department from 1896 to 1902 , and then from 1910 to 1914 .
In 1891 he was a member of the 1891 Death Valley Expedition and its leader for its first 3 months .