John Stewart Jackson

In the early 1870s, he did well
as a mine promoter in the Bolivian silver strike
at Caracoles—a mining district later annexed by
Chile after the War of the Pacific
At the time Jackson put together the Inver-
nada deal he was forty-seven years old. As a mine

promotion the project was perfect. Invernada was

Chile’s first joint-stock mining company, build-
ing on Chile’s recent company law. Juan Jackson

became the company’s president, managing the
finances and using his prestige to bring in outside
capital. Jackson oversaw construction of the plant
along the lines specified by Douglas, the foreign
metallurgical “expert.”