Skip to main content
(c) 2018 Isabella Stewart Gardner Museum, Boston
John Hays Hammond Sr.
(c) 2018 Isabella Stewart Gardner Museum, Boston
(c) 2018 Isabella Stewart Gardner Museum, Boston

John Hays Hammond Sr.

American, 1855 - 1936
BiographyJohn Hays Hammond (31 March 1855 – 8 June 1936) was an American mining engineer, diplomat, and philanthropist. He amassed a sizable fortune before the age of 40. An early advocate of deep mining, Hammond was given complete charge of Cecil Rhodes' mines in South Africa and made each undertaking a financial success. He was a main force planning and executing the Jameson Raid in 1895. It was a fiasco and Hammond, along with the other leaders of the Johannesburg Reform Committee, was arrested and sentenced to death. The Reform Committee leaders were released after paying large fines, but like many of the leaders, Hammond escaped Africa for good. He returned to the United States, became a close friend of President William Howard Taft, and was appointed a special ambassador. At the same time, he continued to develop mines in Mexico and California and, in 1923, he made another fortune while drilling for oil with the Burnham Exploration Company. Wikipedia accessed 11/8/2021 https://en.wikipedia.org/wiki/John_Hays_Hammond
He is the father of John Hayes Hammond, Jr.
Person TypeIndividual
Last Updated8/7/24