Exhibit 23.1
Consent of Independent Public Accounts
As independent public accountants, we hereby consent to the incorporation of our report dated May 7, 2004 into this Form 11-K and to incorporation by reference of such report and the plan annual financial statements prepared in connection therewith in Form S-8, No.333-58784, previously filed by Northern Trust Corporation.
/s/ Hill, Taylor LLC
HILL, TAYLOR LLC
Chicago, Illinois
June 28, 2004
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