Who is the richest self-made woman?

AFFINITY Bank National Association 21 Bank of Gleason 5 Bank of Kaukauna 7 BANK OF MO 16 BANK OF UT 16 CCB Community Bank 18 Cornerstone Bank 5 First Southwest Bank 7 FNBC Bank & Trust 5 Garden Plain State Bank 6 HABIB AMER Bank 19 Harvest Bank 4 Highland Bank 10 Independence Bank 2 LINCOLN SVGS Bank 13 Lumbee Guaranty Bank 12 Lyon County State Bank 5 PINNACLE Bank 13 St. Henry Bank 12 TriCentury Bank 2