Hammond Jr., John Hays b. April 13, 1888 d. February 12, 1965 Inventor. His adult life was shaped by childhood experiences. When his family moved to England, Hammond fell in love with castles and life in earlier times. In South Africa, he saw his father's work as the mining engineer of Cecil Rhodes's diamond mines. When the family moved to Washington, D.C., Hammond met Thomas Alva Edison, who introduced him to [Read More] (Bio by: rjschatz) Hammond Castle Museum, Gloucester, Essex County, Massachusetts, USA