Founder & President of Waters-Pierce Oil Company, Pierce was considered one of the four richest men in the country. Later the company became a subsidy of Rockefeller’s Standard Oil Company. Pierce was found guilty of violating anti-trust laws through his relationship with Standard Oil & resulted in the state of Texas bringing its best-known suit against a corporation for violation its anti-trust law. The U.S. Supreme Court supported the decision & Waters-Pierce paid more than $1,700,000 in fines & interest. (bio by: Connie Nisinger)  Family links:  Spouses:  Minnie C. Finlay Pierce (1849 – 1899)*  Georgiana Virginia Russell Prickett Pierce (1865 – 1958)*  Children:  Roy Ensworth Pierce (1883 – 1925)* *Calculated relationship