1 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 19) KELLY SERVICES, INC., CLASS B ----------------------------------------------------- (NAME OF ISSUER) COMMON STOCK ------------------------------------ (TITLE OF CLASS OF SECURITIES) 488152307 ---------------------------- (CUSIP NUMBER) 12/31/99 ---------------------------- (DATE) CHECK THE FOLLOWING BOX IF FEE IS BEING PAID WITH THIS STATEMENT -----------------------------------------------------

2 CUSIP NO. 488152307 --------------- - ------------------------------------------------------------------------------- 1) Names of Reporting Persons I.R.S. No. 31-0738296 S.S. or I.R.S. Identification Nos. of BANK ONE CORPORATION Above Persons - ------------------------------------------------------------------------------- 2) Check the Appropriate Box if a Member of a Group (a) __________ (See Instructions) (b) __________ - ------------------------------------------------------------------------------- 3) SEC Use only - ------------------------------------------------------------------------------- 4) Citizenship or Place of Organization ILLINOIS - ------------------------------------------------------------------------------- Number of Shares (5) Sole Voting Power 108,782 --------------- Beneficially (6) Shared Voting Power 2,262,290 --------------- Owned by (7) Sole Dispositive Power 11,637 --------------- Each Reporting (8) Shared Dispositive Power 2,371,072 --------------- Person with - ------------------------------------------------------------------------------- 9) Aggregate Amount Beneficially 2,382,709 Owned by Each Reporting Person --------------- - ------------------------------------------------------------------------------- 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) - ------------------------------------------------------------------------------- 11) Percent of Class Represented by Amount in Row 9 67.16% --------------- - ------------------------------------------------------------------------------- 12) Type of Reporting Person (See Instructions) HC ---------------

3 - ------------------------------------------------------------------------------- SEC 13G SECURITIES AND EXCHANGE COMMISSION SCHEDULE 13G Amendment No. 19 Item 1(a) Name of Issuer: Kelly Services, Inc., Class B --------------------------------- Item 1(b) Address of Issuer's principal executive offices: 999 West Big Beaver Road --------------------------------- Troy, MI 48084 --------------------------------- --------------------------------- Item 2(a) Name of person filing: BANK ONE CORPORATION Item 2(b) Address of principal business office or, One First National Plaza if none residence: Chicago, IL 60670 Item 2(c) Citizenship: Not Applicable Item 2(d) Title of class of securities: Common Stock --------------------------------- Item 2(e) CUSIP No.: 488152307 --------------------------------- Item 3. This statement is filed pursuant to Rule 13d-1(c). Item 4. Ownership This beneficial ownership by BANK ONE CORPORATION with respect to common shares of Kelly Services, Inc. : ------------------------------------------- (a) Amount beneficially owned: 2,382,709 -------------- (b) Percent of class 67.16% -------------- (c) Number of shares as to which such person has: (I) Sole power to vote or to direct the vote: 108,782 ------------ (ii) Shared power to vote or to direct the vote: 2,262,290 ------------ (iii) Sole power to dispose or to direct the disposition of: 11,637 ------------ (iv) Shared power to dispose or to direct the disposition of: 2,371,072 ------------

4 Item 5. Ownership of 5 percent or less of a Class. N/A ----------------- Item 6. Ownership of More than 5 percent on Behalf of Another Person. N/A ----------------- Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company. Bank One Trust Company, N.A. Bank One, Florida Item 8. Identification and Classification of Members of the Group. N/A ----------------- Item 9. Notice of Dissolution of Group. N/A ----------------- Item 10. Certification. After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete, and correct. Dated: February 9, 2000 ------------------------ BANK ONE CORPORATION By: /s/ DAVID J. KUNDERT David J. Kundert EXECUTIVE VICE PRESIDENT