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Marshall Field was born on a farm in Conway, Franklin County, Massachusetts, in 1834.  At age 21, he went to live with his brother in Chicago,and obtained employment at leading dry goods merchant Cooley, Wadsworth & Co., which was to become Cooley, Farwell & Co. in 1857. He was an American entrepreneur and the founder of Marshall Field and Company, the Chicago-based store. The company also survived the Panic of 1873 because they didn't have debts. The wholesale business even had its own landmark building, the Marshall Field's Wholesale Store. In 1905, Field's fortune was valued at $125 million.
https://en.wikipedia.org/wiki/Marshall_Field

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Daniel Drew was born in Carmel, New York in July 29, 1797. He was a businessman, steamship and railroad developer as well as financier.He founded the brokerage firm of Drew, Robinson & Company in 1844, which dissolved a decade later with the death of his partner. He also became a director of the New York and Harlem Railroad, where he collaborated again with Vanderbilt to prop up that company's finances. In 1870, Fisk and Gould betrayed Drew, manipulating the stock price of the Erie Railroad and causing him to lose $1.5 million. The Panic of 1873 cost him still more, and by 1876, Drew filed for bankruptcy, with debts exceeding a million dollars and no viable assets.
https://en.wikipedia.org/wiki/Daniel_Drew

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Mark Hopkins was born in Henderson, Jefferson County in September 1, 1813. When the gold rush began in Sacramento, he created the "New England Mining and Trading Company" that was basically buying goods and shipping them to California to sell them there. He lived in New York but then moved to Sacramento and he started a wholesale grocery store. He then later created the "Huntington Hopkins and Company" that operated hardware and iron in Sacramento. However than he became partners with other 3 people and they created the " Central Pacific Railroad" and because of that he was called " balance-wheel of the Associates and one of the truest and best men that ever lived".
https://en.wikipedia.org/wiki/Mark_Hopkins_Jr.

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Henry Morrison was born in Hopewell, New York in January 2, 1830. He created the "Standard Oil"  and also the "Florida East Coast Railway". He made partnership with John D. Rockefeller and Samuel Andrews to help with the "Standard Oil" company because he had the great idea to use the rebate system to strength the the firm's position against competitors and transporting enterprises alike. He later moved to New York since it was the largest center of commerce with his family. Anyway Rockefeller and Flagler continued with the company as it grew more and more by buying competitive refiners, undercutting his competition, making secret deals, and buying rival out. Later it was called "The Cleveland Massacre" because Standard Oil absorbed 22 of the 26 Cleveland competitors, and that is why Standard Oil gradually gained almost complete control of oil refining and marketing in the United States.
https://en.wikipedia.org/wiki/Henry_Flagler

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Jay Cooke was born in Sandusky, Ohio on August 10, 1821. He was the creator of the development or railroads in the Northwestern United States and is acknowledge as the major investment banker and also the creator of the first wire house firm. He first opened the private banking house of "Jay Cook & Company" and it was very successful in distributing Treasury notes. After the Civil War, Cook was interested in the northwest and his firm financed the construction of the "Northern Pacific Railway" and he began to purchase railways, he later went into bankrupt. Later on Cooke took his son-in-law, Charles Barney into the firm and they reorganized to "Chas. D. Barney & Co. and that is when Cooke became more wealthy.
https://en.wikipedia.org/wiki/Jay_Cooke