Christy Walton

Christy Walton married into what is now the richest family in the world: Walmart's Walton clan.

She inherited a stake in the retailer when her husband, John Walton, died in a 2005 plane crash.

Christy received about one-sixth of her husband's estate; her son, Lukas Walton, got about one-third.

She was one of the biggest backers of the Lincoln Project, an anti-Trump super-PAC that ran ads in battleground states during the 2020 campaign.

She leads a very private life in Jackson, Wyoming.