J. P. Morgan

Over the course of his career on Wall Street, Morgan spearheaded the formation of several prominent multinational corporations including U.S. Steel, International Harvester, and General Electric. He and his partners also held controlling interests in numerous other American businesses including Aetna, Western Union, the Pullman Car Company, and 21 railroads. His grandfather Joseph Morgan was one of the co-founders of Aetna. Through his holdings, Morgan exercised enormous influence over capital markets in the United States. During the Panic of 1907, he organized a coalition of financiers that saved the American monetary system from collapse.
As the Progressive Era's leading financier, Morgan's dedication to efficiency and modernization helped transform the shape of the American economy. Adrian Wooldridge characterized Morgan as America's "greatest banker." Morgan died in Rome, Italy, in his sleep in 1913 at the age of 75, leaving his fortune and business to his son, J. P. Morgan Jr. Biographer Ron Chernow estimated his fortune at $80million (equivalent to $billion in ). Provided by Wikipedia
1