Home › H › Hammond (JOHN HAYS an American engineer)

Hammond (JOHN HAYS an American engineer)

JOHN HAYS, an American engineer; born at San Francisco in 1855. He received his preliminary engineering training at the Sheffield Scientific School, Yale University, and took his advanced work at the Royal School of Mines, Freiberg, Germany. He received honorary degrees from Stevens Institute of Technology and St. John's College.

In 1880, as special expert with the United States Geological Survey, he was engaged in the work of mapping the California gold deposits. As an expert on 1 JOHN HAYS HAMMOND mining properties, he was retained as consultant by the Union Iron Works of San Francisco and the Central and Southern Pacific railroads. His wide knowledge of mining operations and mining geology led to his connection with velopment. Active in the Transvaal in 1895-1896, he was arrested, sentenced to death and released upon payment of $125,000 fine. He returned to the United States in 1900 and became interested in the promotion of large-scale mining ventures and various hydro-electric and irrigation works. He became widely known as a University lecturer and was President of the Panama Pacific Exposition Commission, 1912, President of the American Institute of Mining Engineers, 1907- 1908, and a member of several scientific societies.