MEET THE WALTONS: How America's wealthiest family spends its Walmart fortune

Wal-Mart family Jim Walton, Alice Walton and Rob Walton

REUTERS/Rick Wilking

The Waltons are the richest family in America, but they're pretty discreet about it.

The Walmart heirs have a combined wealth of $130 billion, which is more than both Bill Gates and Warren Buffett. In fact, they are worth $48 billion more than the second richest family in the US - the Kochs.

Despite their fortune, they seem to live a pretty modest life. At least in public.
Here's what we do know about how the wealthy family spends its fortune.