186. Winifred Johnson-marquart
$3.8 billion Self-made Score: @ Source: cleaning products age: 58 residence: virginia beach, va. dropout, Cornell The widow and 4 children of Samuel Johnson Jr. (d. 2004) own a majority stake in $10 billion (estimated sales) cleaning products company SC Johnson, which he ran for 34 years. His son H. Fisk III is chairman and CEO. Daughter Helen oversees Johnson Financial and publicly traded Johnson Outdoors. Daughter Winifred heads the family foundation. Son
S. Curtis pleaded guilty to misdemeanor sexual assault of his stepdaughter in 2014; he has no role at the company.