1 EXHIBIT 16 August 27, 1997 Mr. Paul Peduto Treasurer Warren Bancorp, Inc. P.O. Box 6159 Peabody, MA 01961-6159 Dear Mr. Peduto: This is to confirm that the client-auditor relationship between Warren Bancorp, Inc. and KPMG Peat Marwick, LLP has ceased. Very truly yours, /s/ KPMG Peat Marwick LLP KPMG Peat Marwick LLP cc: Chief Accountant Securities and Exchange Commission