Henry Wells (1805-78) and William Fargo (1818-81) first worked together when they broke the Post Office monopoly on mail service along the Erie Canal in the 1840s. In 1852 they incorporated Wells, Fargo & Company and went into the express business in California, carrying gold, letters, packages, and freight between the mining regions and the financial centers of the East. They registered the miners to receive deliveries, guarded the gold-dust shipments, apprehended stage robbers, recovered stolen gold and silver, and established a reliable, conservative banking house in the world's wickedest...