In 1869, an individual earned around $38,000, equivalent to $810,000 today, with tax rates set at 3% for incomes over $600 and 5% for those exceeding $10,000, before being repealed in favor of a new income tax in 1862. The individual made investments in railroads, coal mining, and property, experiencing substantial wealth growth over two decades. By 1861, at age 58, they had amassed considerable wealth, comprising 5% of their annual income.