Answer :
The correct answer is John William Mackay.
Mackay was one of the four people, called Bonanza Kings, who made a fortune on the discovery, but Mackay was the richest of them, as he owned the biggest share in the mine.
Mackay was one of the four people, called Bonanza Kings, who made a fortune on the discovery, but Mackay was the richest of them, as he owned the biggest share in the mine.