WINIFRED JOHNSONMARQUART

$3.9

BILLION  SELF-MADE SCORE: @ SOURCE: CLEANING PRODUCTS AGE: 60 RESIDENCE: VIRGINIA BEACH, VA PHILANTHROPY SCORE:

The four siblings own a majority stake in $10.5 billion (est. sales) cleaning products company SC Johnson, founded in 1886 by their great-great-grandfather, Samuel Curtis. H. Fisk is chairman and CEO of the company, which in August threatened to sue Oklahoma attorney general Mike Hunter for using the company’s slogan (“a family company”) in statements and filings related to the state’s opioid lawsuit against Johnson & Johnson. The attorney general’s office said it would not do it again.