Document:

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                                                                    EXHIBIT 4.1

                     [Park National Corporation Letterhead]

                                 March 26, 2003

Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C.  20549

          Re:    Park National Corporation - Annual Report on Form 10-K for the
                 fiscal year ended December 31, 2002

Ladies and Gentlemen:

         Park National Corporation, an Ohio corporation ("Park"), is today
executing and filing an Annual Report on Form 10-K for the fiscal year ended
December 31, 2002 (the "Form 10-K").

         Pursuant to the instructions to Item 601(b)(4)(iii) of Regulation S-K,
Park hereby agrees to furnish to the Commission, upon request, copies of
instruments and agreements defining the rights of holders of long-term debt of
Park and its consolidated subsidiaries, which are not being filed as exhibits to
the Form 10-K. Such long-term debt does not exceed 10% of the total assets of
Park and its subsidiaries on a consolidated basis.

                                            Very truly yours,

                                            PARK NATIONAL CORPORATION

                                            /s/ John W. Kozak
                                            -------------------------
                                            John W. Kozak
                                            Chief Financial Officer<PAGE>
                                                                   EXHIBIT 10.1

                       SUMMARY OF INCENTIVE BONUS PLAN OF

                            PARK NATIONAL CORPORATION

         The Executive Committee of the Board of Directors of Park National
Corporation ("Park") administers Park's incentive bonus plan which enables the
officers of The Park National Bank, The Richland Trust Company, Century National
Bank, The First-Knox National Bank of Mount Vernon, Second National Bank, United
Bank, N.A., The Security National Bank and Trust Co., The Citizens National Bank
of Urbana, Scope Leasing, Inc. and Guardian Financial Services Company to share
in any above-average return on equity (net income divided by average equity)
which Park and its subsidiaries on a consolidated basis may generate during a
fiscal year.

         Above-average return on equity is defined as the amount by which the
net income to average equity ratio of Park and its subsidiaries on a
consolidated basis exceeds the median net income to average equity ratio of all
U.S. bank holding companies of similar asset size ($3 billion to $10 billion). A
formula determines the amount, if any, by which Park's return on equity ratio
exceeds the median return on equity ratio of these peer bank holding companies.
Twenty percent (20%) of that amount on a before-tax equivalent basis is
available for incentive compensation. If Park's return on equity ratio is equal
to or less than that of the peer group, no incentive compensation will be
available with respect to that year. The President and Chief Executive Officer
of Park receives a fixed percentage of the amount available for incentive
compensation as determined by the Board of Directors of Park. After deducting
that amount, the remaining amount is distributed to the officers of Park
National Bank, Richland Trust Company, Century National Bank, First-Knox
National Bank, Second National Bank, United Bank, Security National Bank,
Citizens National Bank, Scope Leasing and Guardian Financial on the basis of
their respective contributions to Park's meeting its short-term and long-term
financial goals during the fiscal year, which contributions are subjectively
determined by the Chairman of the Board and the President and Chief Executive
Officer of Park and approved by the Executive Committee of the Board of
Directors of Park. Recommendations of the presidents of Park's subsidiaries are
considered when determining incentive bonus amounts for officers of those
subsidiaries. The determination of the amounts of incentive bonus to be paid for
a fiscal year and the payment of those amounts are made during the first two
quarters of the next fiscal year.<PAGE>

                                                     SCHEDULE A TO EXHIBIT 10.2

         The following individuals entered into Split-Dollar Agreements with the
subsidiaries of Park National Corporation ("Park") identified below which are
identical to the Split-Dollar Agreement, dated May 17, 1993, between William T.
McConnell, Chairman of the Board and a Director of Park and of The Park National
Bank ("Park National Bank") and Park National Bank filed as Exhibit 10(f) to
Park's Annual Report on Form 10-K for the fiscal year ended December 31, 1993
(File No. 0-18772):
<TABLE>
<CAPTION>
                                                                              Subsidiary of Park
Name and Positions Held With Park                Date of Split-               which is Party to
and/or Principal Subsidiaries of Park            Dollar Agreement             Split-Dollar Agreement
-------------------------------------            ----------------             ----------------------
<S>                                              <C>                          <C>
David C. Bowers - Retired Secretary of           June 2, 1993                 Park National Bank
Park; Retired Executive Vice President
and a Director of Park National Bank

C. Daniel DeLawder - President, Chief            May 26, 1993                 Park National Bank
Executive Officer and a Director of Park
and of Park National Bank; Director of
The Richland Trust Company; Director of
Second National Bank

John W. Kozak - Chief Financial Officer          June 2, 1993                 Park National Bank
of Park; Senior Vice President and Chief
Financial Officer of Park National Bank; a
Director of Century National Bank

William A. Phillips - a Director of Park;        May 22, 1998                 Century National Bank
Chairman of Board and a Director of
Century National Bank

David L. Trautman - Secretary of Park;           September 23, 1993           Park National Bank
Executive Vice President and a Director
of Park National Bank; Chairman of the
Board and a Director of The First-Knox
National Bank of Mount Vernon; a
Director of United Bank, N.A.
</TABLE><PAGE>

                                                     SCHEDULE A TO EXHIBIT 10.3

         The following directors of Park National Corporation ("Park") entered
into Split-Dollar Agreements with the subsidiaries of Park identified below
which are identical to the Split-Dollar Agreement, dated September 29, 1993,
between Dominick C. Fanello and The Richland Trust Company ("Richland Trust")
filed as Exhibit 10(g) to Park's Annual Report on Form 10-K for the fiscal year
ended December 31, 1993 (File No. 0-18772):

<TABLE>
<CAPTION>
                               Subsidiary of Park which is a Party to                        Date of Split-Dollar
Name of Director               Split-Dollar Agreement                                        Agreement
----------------               --------------------------------------                        --------------------
<S>                            <C>                                                           <C>
Maureen Buchwald               The First-Knox National Bank of Mount Vernon                  May 22, 1998
                               ("First-Knox National Bank")

James J. Cullers               First-Knox National Bank                                      May 22, 1998

R. William Geyer               Century National Bank (formerly Mutual Federal Savings        October 4, 1993
                               Bank) ("Century National")

Howard E. LeFevre              The Park National Bank ("Park National Bank")                 September 7, 1993

John J. O'Neill                Park National Bank                                            September 2, 1993

J. Gilbert Reese               Park National Bank                                            September 8, 1993

Rick R. Taylor                 Richland Trust                                                September 29, 1993
</TABLE><PAGE>

                                                                    EXHIBIT 10.6

                    DESCRIPTION OF PARK NATIONAL CORPORATION
                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

         Park National Corporation ("Park") adopted the Park National
Corporation Supplemental Executive Retirement Plan or "SERP" in December 1996.
The SERP currently benefits 29 officers of Park and its subsidiaries, including
William T. McConnell, C. Daniel DeLawder, David C. Bowers and John W. Kozak.
Harry O. Egger does not participate in the SERP but is provided with
supplemental retirement benefits under the terms of his employment agreement
with The Security National Bank and Trust Co. David L. Trautman does not
participate in the SERP. The SERP is a non-qualified benefit plan designed to
restore benefits lost due to limitations under the Internal Revenue Code of
1986, as amended, on the amount of compensation covered by and the benefits
payable under a defined benefit plan such as the Park National Corporation
Defined Benefit Pension Plan. Park has purchased life insurance contracts to
fund the SERP. The SERP is designed to provide a monthly retirement benefit of
approximately $5,000, $10,500, $5,000 and $500 for Messrs. McConnell, DeLawder,
Bowers and Kozak, respectively. These additional benefits are not guaranteed and
are dependent upon the earnings from the related life insurance contracts
compared to the average yield on three-month Treasury bills. The SERP also
provides a life insurance benefit for officers of Park and its subsidiaries
participating in the SERP who die before age 86.<PAGE>
                                                                   EXHIBIT 10.13

                       DESCRIPTION OF ANNUAL RETAINER FOR
                    SERVICES AS MEMBER OF BOARD OF DIRECTORS
                          OF PARK NATIONAL CORPORATION
                          OR OF A BANKING SUBSIDIARY OF
                            PARK NATIONAL CORPORATION
                        OR AS A MEMBER OF ADVISORY BOARD
                     FOR A DIVISION OF A BANKING SUBSIDIARY

         The board of directors of Park National Corporation ("Park") and each
of its banking subsidiaries as well as the advisory board for certain divisions
of those banking subsidiaries with two divisions have determined that each of
the non-employee directors or non-employee advisory board members, as
appropriate, is to receive the annual retainer for service as a board member in
the form of Park common shares. Each director of Park who is not an employee of
Park or one of its subsidiaries receives an annual retainer for service as a
member of the Park board of directors in the form of 100 Park common shares.
Each non-employee director of one of Park's banking subsidiaries receives an
annual retainer for service as a member of that subsidiary's board of directors
in the form of 50 Park common shares. Each non-employee member of an advisory
board for a division of a banking subsidiary receives an annual retainer for
service as a member of that advisory board in the form of 50 Park common shares.
These common shares are issued in the fourth quarter of the fiscal year.

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