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                                                                    Exhibit 31


                    CHIEF EXECUTIVE OFFICER CERTIFICATION

I, John W. Bachmann, certify that:

1.     I have reviewed this amended quarterly report on Form 10-Q/A of The
       Jones Financial Companies, L.L.L.P.

2.     Based on my knowledge, this amended quarterly report does not contain
       any untrue statement of a material fact or omit to state a material
       fact necessary to make the statements made, in light of the
       circumstances under which such statements were made, not misleading
       with respect to the period covered by this amended quarterly report.

3.     Based on my knowledge, the financial statements, and other financial
       information included in this amended quarterly report, fairly
       present in all material respects the financial condition, results of
       operations and cash flows of the Partnership as of, and for, the
       periods presented in this amended quarterly report.

4.     The Partnership's other certifying officer and I are responsible for
       establishing and maintaining disclosure controls and procedures (as
       defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the
       Partnership and have;

       a)  designed such disclosure controls and procedures, or caused such
           disclosure controls and procedures to be designed under our
           supervision, to ensure that material information relating to
           the Partnership, including its consolidated subsidiaries, is made
           known to us by others within those entities, particularly during
           the period in which this amended quarterly report is being
           prepared;

       b)  evaluated the effectiveness of the Partnership's disclosure
           controls and procedures and presented in this report our
           conclusions about the effectiveness of the disclosure controls
           and procedures, as of the end of the period covered by this
           report based on such evaluation and

       c)  disclosed in this report any change in the Partnership's internal
           control over financial reporting that occurred during the
           Partnership's third quarter that has materially affected, or is
           reasonably likely to materially affect, the Partnership's
           internal control over financial reporting.

5.     The Partnership's other certifying officer and I have disclosed,
       based on our most recent evaluation of internal control over
       financial reporting to the Partnership's auditors and the Executive
       Committee:

       a)  all significant deficiencies and material weaknesses in
           the design or operation of internal controls over financial
           reporting which are reasonably likely to adversely affect the
           Partnership's ability to record, process, summarize, and report
           financial information; and

       b)  any fraud, whether or not material, that involves management or
           other associates who have a significant role in the Partnership's
           internal control over financial reporting.

                                      /s/ John W. Bachmann
                                      ---------------------------------------
                                      Chief Executive Officer
                                      The Jones Financial Companies, L.L.L.P.
                                      December 3, 2003


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                                                                    Exhibit 31

                    CHIEF EXECUTIVE OFFICER CERTIFICATION

I, Steven Novik, certify that:

1.     I have reviewed this amended quarterly report on Form 10-Q/A of The
       Jones Financial Companies, L.L.L.P.

2.     Based on my knowledge, this amended quarterly report does not contain
       any untrue statement of a material fact or omit to state a material
       fact necessary to make the statements made, in light of the
       circumstances under which such statements were made, not misleading
       with respect to the period covered by this amended quarterly report.

3.     Based on my knowledge, the financial statements, and other financial
       information included in this amended quarterly report, fairly present
       in all material respects the financial condition, results of operations
       and cash flows of the Partnership as of, and for, the periods presented
       in this amended quarterly report.

4.     The Partnership's other certifying officer and I are responsible for
       establishing and maintaining disclosure controls and procedures (as
       defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the
       Partnership and have;

       a)  designed such disclosure controls and procedures, or caused such
           disclosure controls and procedures to be designed under our
           supervision, to ensure that material information relating to
           the Partnership, including its consolidated subsidiaries, is made
           known to us by others within those entities, particularly during
           the period in which this amended quarterly report is being
           prepared;

       b)  evaluated the effectiveness of the Partnership's disclosure
           controls and procedures and presented in this report our
           conclusions about the effectiveness of the disclosure controls
           and procedures, as of the end of the period covered by this
           report based on such evaluation and

       c)  disclosed in this report any change in the Partnership's internal
           control over financial reporting that occurred during the
           Partnership's third quarter that has materially affected, or is
           reasonably likely to materially affect, the Partnership's
           internal control over financial reporting.

5.     The Partnership's other certifying officer and I have disclosed ,
       based on our most recent evaluation of internal control over
       financial reporting to the Partnership's auditors and the Executive
       Committee:

        a) all significant deficiencies and material weaknesses in
           the design or operation of internal controls over financial
           reporting which are reasonably likely to adversely affect the
           Partnership's ability to record, process, summarize, and report
           financial information; and

        b) any fraud, whether or not material, that involves management or
           other associates who have a significant role in the Partnership's
           internal controls over financial reporting.

                                      /s/ Steven Novik
                                      ---------------------------------------
                                      Chief Financial Officer
                                      The Jones Financial Companies, L.L.L.P.
                                      December 3, 2003