Mary Hudson Vandergrift was an American oil business tycoon.
The business later collapsed due to court judgments against her company for allegations of overcharging customers and for underpaying its employees.
At age 21, she borrowed $200 from her father which then used to open her first Hudson Oil Co. station in Kansas City.
[7] Throughout the years, she built a chain of oil stations known for its low prices and no-frills service.
In early 1980s, the business turned sour when the US oil industry crashed.