Betsy, the daughter of auto parts magnate Edgar Prince and sister of Blackwater founder Erik Prince, owes the vast majority of her fortune to her marriage to Dick DeVos. His father, Richard DeVos Sr., cofounded Amway in 1959 alongside his high school friend, Jay Van Andel. What began as two buddies selling an all-purpose cleaner door-to-door quickly grew into an army of independent salespeople hawking vitamins, soaps and other household goods to friends and family—and, controversially, earning money by signing others up as distributors too. Dick DeVos ran the company from 1993 to 2002. Today one DeVos (Dick’s brother Doug) and one Van Andel co-chair the board. The families split ownership 50/50, according to a spokesperson of the DeVos family. here