Image: Wikipedia
Worth: $2M in the 1930s Source: Governmen agent and various businesses
Image: Mises Institute
Worth: $200M in the 1960s Source: Automative Parts, Wilson Industries
Image: Wikipedia
Worth: $50M in the 1910s Source: Sears, Roebuck and Co. (Retail)
Image: Wikipedia
Worth: $200M in the 1930s Source: Stock Market, Real State, Liquor
Image: Wikipedia
Worth: $100M in the 1940s Source: Olin Corporation (Ammunition)
Image: Wikipedia
Worth: $100M in the 1920s Source: U.S. Steel and Bethlehem Steel
Image: Wikipedia
Worth: $60M in the 1910s Source: Heinz Company (Food)
Image: Wikipedia
Worth: $100M in the 1920s Source: Brokerage Firm 'E.F. Hutton & Co.'