Lynsi Torres, the 30-year-old president and owner of In-N-Out Burger, is the youngest female billionaire in the U.S., Bloomberg reports. Her grandparents Harry and Esther Snyder founded the hamburger chain.
Torres does not have a college degree or much formal management training, Bloomberg reports. Thanks to In-N-Out's large fan base at its nearly 280 restaurants in five states, the chain is now worth roughly $1.1 billion, according to estimates -- 19,298 times more than the median U.S. household in 2010.
Bloomberg has uncovered other secret billionaires over the past year. It reported in September that the private Elaine Marshall, 70, is the fourth-richest woman in the United States, thanks to her 15 percent stake in Koch Industries. Bloomberg revealed in August that Dirce Navarro de Camargo is Brazil's richest woman. And Bloomberg reported last week that four step-grandchildren of former Nazi propaganda minister Joseph Goebbels are billionaires.
Bloomberg founder Michael Bloomberg, currently mayor of New York City, is a prominent billionaire. He is the 11th-richest person in the U.S. and 20th-richest person in the world, according to Forbes, with an estimated worth of $22 billion.
In the below photo, Lynsi Torres, owner of In-N-Out, is seen after her victory in the NHRA Lucas Oil Drag Racing Series event at Chandler, Ariz., on Feb 24, 2012 (Credit: Bob Johnson Photography):