How can I find out where a transaction came from?

1st Equity Bank 6 Bank of Mead 3 Bank of Whittier, National Association 2 Cedarstone Bank 2 Community Bank of Parkersburg 1 First National Bank of Williamson 3 FIRST SOUTHERN National Association National Bank 5 Freeport State Bank 4 Grundy Bank 14 Ledyard National Bank 7 New Republic Bank 6 NEWFIELD National Association National Bank 3 NORTH SALEM State Bank 12 Prescott State Bank 1 Sherwood Community Bank 2 SouthTrust Bank, National Association 4 Southwest Bank of Weatherford 4 State Bank of Graymont 13 Sundance State Bank 1 Welcome State Bank 7