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andrew carnegie
While working for the railroad, Carnegie began making investments. He made many wise choices and found that his investments, especially those in oil, brought in -
j.p morgan
J.P. Morgan stood astride the nation's financial world like a colossus. His banking house erected the structure of the most prominent American industries in the Gilded Age beginning with the railroad. . -
john d rockeffeller
e built his first oil refinery near Cleveland and in 1870 incorporated the Standard Oil Company. By 1882 he had a near-monopoly of the oil business in t
