John D. Rockefeller

John D. Rockefeller, a German immigrant family member, was considered a loner at school. He felt the class differences between rich and poor from an early age. As a teenager, he worked as a dishwasher and bell boy for his pocket money, carefully tracking every penny. He finished high school at 16 and began training as an accountant in Cleveland, becoming popular and valued by management for his extreme correctness and reliability.