SC 13G

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549


SCHEDULE 13G


Under the Securities Exchange Act of 1934
(Amendment No. 0)


Harmon Industries Inc
(Name of Issuer)


Common Stock
(Title of Class of Securities)


413136102
(CUSIP Number)


December 31, 1999
(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

	[x  ]	Rule 13d-1(b)
	[   ]	Rule 13d-1(c)
	[   ]	Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class
of securities, and for any subsequent amendment containing information
which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the Securities
Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of
that section of the Act but shall be subject to all other provisions of
the Act (however, see the Notes).



CUSIP No.   413136102     13G

- -----------------------------------------------------------------------
1.
NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Firstar Corporation
39-1940778
- ------------------------------------------------------------------------
2.
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                               (a)

                                               (b)
- ------------------------------------------------------------------------
3.
SEC USE ONLY


- ------------------------------------------------------------------------
4.
CITIZENSHIP OR PLACE OF ORGANIZATION

Wisconsin
- -------------------------------------------------------------------------
                       :5.  SOLE VOTING POWER
NUMBER OF              :    38,818
SHARES                 :------------------------------------------------
BENEFICIALLY           :6.  SHARED VOTING POWER
OWNED                  :    -0-
BY EACH                :-------------------------------------------------
REPORTING PERSON       :7.  SOLE DISPOSITIVE POWER
WITH                   :    2,546
                       :------------------------------------------------
                       :8.  SHARED DISPOSITIVE POWER
                       :    899,128
- -------------------------------------------------------------------------
9.
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

901,984
- -------------------------------------------------------------------------
10.
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*


- -------------------------------------------------------------------------
11.
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

8.0%
- --------------------------------------------------------------------------
12.
TYPE OF REPORTING PERSON*

HC
- -------------------------------------------------------------------------



CUSIP No. 413136102     13G

- -----------------------------------------------------------------------
1.
NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Mercantile Trust Company, N.A.
43-1651858
- ------------------------------------------------------------------------
2.
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                              (a)
                                              (b)
- ------------------------------------------------------------------------
3.
SEC USE ONLY


- -------------------------------------------------------------------------
4.
CITIZENSHIP OR PLACE OF ORGANIZATION

National association
- ------------------------------------------------------------------------
                        :5.  SOLE VOTING POWER
NUMBER OF               :    38,508
SHARES                  :-----------------------------------------------
BENEFICIALLY            :6.  SHARED VOTING POWER
OWNED                   :    -0-
BY EACH                 :-----------------------------------------------
REPORTING PERSON        :7.  SOLE DISPOSITIVE POWER
WITH                    :    2,546
                        :----------------------------------------------
                        :8.  SHARED DISPOSITIVE POWER
                        :    899,128
- ------------------------------------------------------------------------
9.
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

901,674
- -------------------------------------------------------------------------
10.
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*


- -------------------------------------------------------------------------
11.
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

8.0%
- -------------------------------------------------------------------------
12.
TYPE OF REPORTING PERSON*

BK
- -------------------------------------------------------------------------



Item 1(a).  Name of Issuer:

            Harmon Industries Inc.

Item 1(b).  Address of Issuer's Principal Executive Offices:

            1600 NE Coronado Drive
            Blue Springs, MO  64015-6236

Item 2(a).  Name of Persons Filing:

            Firstar Corporation

            Mercantile Trust Company, N.A.

Item 2(b).  Address of Principal Business Office or, if none, Residence:

            Firstar Corporation
            777 E Wisconsin Avenue
            Milwaukee, WI  53202

            Mercantile Trust Company, N.A.
            One Mercantile Center
            St. Louis, MO  63101

Item 2(c).  Citizenship:

            Firstar Corporation:  Wisconsin

            Mercantile Trust Company, N.A.:  national association

Item 2(d).  Title and Class of Securities:

            Common Stock

Item 2(e).  CUSIP Number

            413136102

Item 3.  If this statement is filed pursuant to Rules 13d-1(b), or
         13d-2(b) or (c), check whether the person filing is a:

         (a)[   ]  Broker or Dealer registered under Section 15 of the Act
                   (15 U.S.C. 78o).
         (b)[ X ]  Bank as defined in section 3(a)(6) of the Act
                   (15 U.S.C. 78c).
         (c)[   ]  Insurance Company as defined in section 3(a)(19) of the
                   Act (15 U.S.C. 78c).
         (d)[   ]  Investment Company registered under section 8 of the
                   Investment Company Act of 1940 (15 U.S.C. 80a-8).
         (e)[   ]  An investment adviser in accordance with Section
                   240.13d-1(b)(1)(ii)(E).
         (f)[   ]  An employee benefit plan or endowment fund in accordance
                   with Section 240.13d-1(b)(1)(ii)(F).
         (g)[ X ]  A parent holding company or control person in
                   accordance with Section 240.13d-1(b)(1)(ii)(G).
         (h)[   ]  A savings association as defined in Section 13(b) of
                   the Federal Deposit Insurance Act (12 U.S.C. 1813).
         (i)[   ]  A church plan that is excluded from the definition of
                   an investment company under Section 3(c)(14) of the
                   Investment Company Act of 1940 (15 U.S.C. 80a-3).
         (j)[   ]  A group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

Item 4.  Ownership:

         (a)    Amount beneficially owned:  901,984
         (b)    Percent of class:  8.0%
         (c)(i)   Sole power to vote or to direct the vote:  38,818
         (c)(ii)  Shared power to vote or to direct the vote:  0
         (c)(iii)  Sole power to dispose or direct the disposition:  2,546
         (c)(iv)  Shared power to dispose or direct the disposition:  899,128

Item 5.  Ownership of Five Percent or Less of a Class:

         Inapplicable

Item 6.  Ownership of More Than Five Percent on Behalf of Another Person:

         Other persons may  have the right to receive or the power to
         direct the receipt of dividends from, or the proceeds from the
         sale of, shares beneficially owned by the filing person.

Item 7.  Identification and Classification of the Subsidiary Which
         Acquired the Security Being Reported on by the Parent Holding Company:

         See Exhibit A

Item 8.  Identification and Classification of Members of the Group:

         Inapplicable

Item 9.  Notice of Dissolution of Group:

         Inapplicable

Item 10.  Certification:

          By signing below, I certify that, to the best of my knowledge and
          belief, the securities referred to above were acquired and are
          held in the ordinary course of business and were not acquired and
          are not held for the purpose of or with the effect of changing or
          influencing the control of the issuer of the securities and were
          not acquired and are not held in connection with or as a participant
          in any transaction having that purpose or effect.

Signature:

          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.



FIRSTAR CORPORATION


By: 	/s/Jennie P. Carlson
     Executive Vice President
     Dated February 11, 2000


Mercantile Trust Company, N.A.

By: 	/s/ Jennie P. Carlson
     Dated February 11, 2000

EX-99

EXHIBIT A

IDENTIFICATION OF SUBSIDIARY(IES)

ITEM 7.	Identification and Classification of the Subsidiary Which
        Acquired the Security Being Reported on by the Parent Holding Company:

        Firstar Bank, National Association                              BK

        Mercantile Trust Company, N.A.                                  BK