Biography: John D. Rockefeller, Senior

By the age of 12, John had saved over $50 from working for neighbors and raising some turkeys for his mother

John D. Rockefeller, Jr., 1874-1960

Seizing the Generational Moment: A Story of John D. Rockefeller Sr

John D. Rockefeller Biography, Industry, Philanthropy, Facts

John D. Rockefeller - Wikipedia

Titan: The Life of John D. Rockefeller Ron Chernow First Edition

How 'richest man in history' made his billions - and family

John D. Rockefeller, 1839-1937

Rockefeller: Making of a Billionaire

John D. Rockefeller Jr. – Yousuf Karsh

John D. Rockefeller - Citizendium