The descendants of Walmart’s founders Sam and Bud Walton are now worth half a trillion dollars—three times as much as America’s second wealthiest family.

The descendants of Walmart’s founders Sam and Bud Walton are now worth half a trillion dollars—three times as much as America’s second wealthiest family.

The biggest family fortunes in the United States have largely been built through businesses that have existed for generations rather than overnight success stories. Many of these…