[Filed under Rule 424(b)(3)]
PROSPECTUS SUPPLEMENT No. 1
To Prospectus Dated March 7, 1997
67,167 Shares
Common Stock
[LOGO] MARK TWAIN BANCSHARES, INC.
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For Use in the Window Period Beginning on March 10, 1997
and ending on April 10, 1997
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This Prospectus Supplement is to be used in conjunction with the
Prospectus dated March 7, 1997, to which this Prospectus Supplement is
attached. This Prospectus Supplement provides supplemental information for
those sections of the Prospectus captioned "Selling Shareholders" and "Plan
of Distribution." The Prospectus should be read in order to understand
this Prospectus Supplement. Terms used in this Prospectus Supplement have
the meanings given them in the Prospectus.
The Selling Shareholders identified below have given the Company
notice of their intent to sell those shares of Common Stock, and have
provided the Company with the other information, set forth below:
<TABLE>
Selling Shareholder's Broker Shares Owned Shares Shares Owned
Selling Shareholder and Broker's Commission Before Sales Being Offered After Sales
<S> <S> <C> <C> <C>
Mercantile Bank of South Stifel, Nicolaus & Co., Inc.; 65,233 52,639* 12,594
Central Missouri, as commission is $0.06 per
Trustee under Earl K. share sold, or $3,158.34
Nau Trust dtd 8/22/89 in total if all shares
are sold
Carnahan Family, L.P. Merrill Lynch, Pierce, Fenner 14,269 2,500 11,769
& Smith, Inc.; commission
is $0.25 per share sold,
or $625.00 in total if all
shares are sold
</TABLE>
The Selling Shareholders identified above hold no positions with the
Company other than as shareholders. Earl K. Nau, the grantor of the Earl K.
Nau Trust Dated August 22, 1989 (the "Trust"), was president of First City
Bancshares prior to his death; the Trust acquired its shares in connection
with the Company's acquisition of First City Bancshares in 1996. Kris Nau,
a beneficiary of the Trust, is an employee of a subsidiary of the Company.
All sales are expected to be made in ordinary brokers transactions
following delivery of the Prospectus and this Supplement. The Trust has
agreed not to sell more than 10,000 shares in any single trading day except
in institutional block trades.
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THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMIS-
SION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS DOCUMENT.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
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The date of this Prospectus Supplement is March 11, 1997.
