How did Dana Dykhouse make his money?

ALLIANCE Bank CENT TX 6 Bank of Hancock County 7 Bank of Landisburg 7 Bank of the Flint Hills 11 BankTennessee 4 Black River Country Bank 9 CAMDEN National Association National Bank 16 CFG Bank 15 CITIZENS Community FED National Association 11 Commonwealth National Bank 12 First Bank & Trust, Murphysboro 1 FIRST Bank RICHMOND 7 FIRST S State Bank 1 IOWA State Bank 14 Peoples Bank of Graceville 5 Peoples Bank of Mt. Washington 6 Petefish, Skiles & Co. 12 RAYMOND JAMES Bank 18 SOUTHSTATE Bank National Association 20 WALLIS Bank 13