Andrew Carnegie was born in 1835 in a weaver’s cottage in Dunfermline, Scotland, the son of a handloom weaver whose trade was being destroyed by the power looms of the Industrial Revolution. The family emigrated to the United States in 1848 in near-poverty, settling near Pittsburgh, where thirteen-year-old Andrew went to work in a cotton mill as a bobbin boy for about $1.20 a week. Roughly half a century later he sold the Carnegie Steel Company to J. P. Morgan for $480 million and was, by most reckonings, the richest man in the world.
His rise is the archetypal American rags-to-riches story, and unusually for the genre it is exhaustively documented — in his own bestselling Autobiography, in company records, and in the public sale that created U.S. Steel in 1901. Carnegie climbed from the mill floor to the telegraph office to the Pennsylvania Railroad, learned how capital and information moved, invested shrewdly, and then bet everything on steel at the exact moment America was building its railroads, bridges, and skyscrapers out of it.
What sets Carnegie apart from the other titans of the Gilded Age is what he did next. Having argued in his 1889 essay ‘The Gospel of Wealth’ that a rich man who dies rich ‘dies disgraced,’ he spent the last eighteen years of his life giving nearly all of his fortune away — some $350 million, the equivalent of many billions today — to libraries, universities, science, and the cause of world peace. He funded over 2,500 public libraries, founded what became Carnegie Mellon University, and built Carnegie Hall.
He was also the man whose company crushed its workers at the Homestead strike of 1892, a bloody episode he was careful to be abroad for and never fully lived down. The full Carnegie story is therefore both halves of the Wheel of Fortune at once: a genuine rise from nothing, and a fortune built on labor he paid as little as he could — given away, at the end, on a scale no one had attempted before.
John Davison Rockefeller was born on July 8, 1839, in Richford, New York, the son of William Avery ‘Big Bill’ Rockefeller, an itinerant peddler of patent medicines and quack cures who was frequently absent, sometimes bigamous, and once a fugitive from a criminal charge. His mother, Eliza, a devout and frugal Baptist, held the household together through long stretches of want and uncertainty. The future richest man in America grew up in a family that never knew from one season to the next whether his father would return with money or with nothing.
At sixteen Rockefeller left school for a ten-week bookkeeping course and, on September 26, 1855 — a date he celebrated as ‘Job Day’ for the rest of his life — took his first position as an assistant bookkeeper at a Cleveland produce firm, earning on the order of fifty cents a day. From that ledger he built, in barely fifteen years, the Standard Oil Company, and from Standard Oil he built a near-total monopoly over American oil refining that made him the wealthiest American of the age and, by inflation-adjusted measures, very likely the richest person in modern history.
Rockefeller’s fortune is the textbook case of monopoly. He did not invent oil refining or strike a lucky gusher; he out-organized, out-financed, and out-maneuvered everyone else in a chaotic young industry until he controlled roughly ninety percent of it. He did it through obsessive cost control, secret railroad rebates that competitors could not match, and a relentless campaign of buying or breaking rivals — tactics that built one of history’s great fortunes and also provoked the muckraking and antitrust law that eventually forced Standard Oil apart in 1911.
The honest accounting of Rockefeller is that the same machine produced cheaper kerosene for millions of households and crushing pressure on every independent refiner and producer in his path. In his later decades he turned to giving on an unprecedented scale — roughly half a billion dollars to medicine, education, and public health — founding institutions that still bear his name. He is, like Carnegie, a Gilded Age figure of two ledgers: a genuine rise from a precarious childhood, and a fortune extracted through monopoly, given away at the end in amounts that reshaped American philanthropy.