Net worth: $34.3 billion (As of March 2014)
Gained $8 billion since 2013; jumped 3 spots on the Forbes list.
Alice Walton is the youngest of the 4 children of Sam Walton and Helen Walton and one of the three surviving heirs to the world's biggest retail chain and business, Wal-Mart. As the biggest philanthropist of the Walton family, Alice gave more than $2 million in 2012 to support charter school initiatives. She and her siblings have also donated about $2 billion to the Walton Family Foundation over the last five years.
