Which banks are under the same group?

Alden State Bank 11 AMERICAN EXPRESS National Association National Bank 23 ANSTAFF Bank 12 Bank of Cashton 9 Bank of Glen Burnie 8 Border Bank 8 CENTRAL Trust Bank 5 Clay County State Bank 6 COMMUNITY Bank National Association 7 Equitable Bank 10 Exchange Bank of Alabama 2 FIRST KEYSTONE Community Bank 9 First National Bank of Le Center 2 FNB Community Bank 17 FREMONT Bank 12 Minnesota First Credit & Savings 4 Savings Bank 11 Southern Heritage Bank 2 Tri-County Trust Company 2 WAUKESHA State Bank 10