97. Ann Walton Kroenke
The Wal-mart heiress inherited her stake in the business from father James “Bud” Walton (d. 1995), brother of the retailer’s founder, Sam. She normally stays out of headlines, but she and her family made news in September for their promise to give $1 million to the Red Cross to aid victims of Hurricane Harvey. Her husband, Stan (No. 57), who owns the Los Angeles Rams, among other holdings, receives far more media attention.