Which family is a trillionaire?

Bank of Edison 4 Bank of Millbrook 10 BRISTOL CTY SVG Bank 10 CELTIC Bank CORP 21 First Financial Bank 3 FIRST National Association B&TC 19 First National Bank of Sparta 4 First State Bank of Malta 16 Generations Bank 9 Grand MO Bank 4 Mason City National Bank 1 Oostburg State Bank 7 Oxford Bank 6 pncbank 31 regions online banking 24 Security State Bank of Kenyon 4 SOUTHERN Bank 13 United Minnesota Bank 5 UNITY Bank 18 WoodTrust Bank 2