5 Oldest Richest Families in America

2. Cargill/MacMillan Family

Latest net worth as per Forbes (in billions): $47

Cargill is considered to be the second largest private company in the world, and the source of the Cargill / Macmillan family fortune. Established in 1865, over 150 years ago, Cargill’s annual revenue exceeded $165 billion in 2022, a figure that most of the top public companies in the world would give anything to achieve.