Exhibit 31
                                                            ----------
                             CERTIFICATION

  I, Spencer Wertheimer, certify that:

1.     I  have reviewed this annual report on Form 10-K for the period
 ended December 31, 2004   of Diversified Historic Investors III;

2.      Based on my knowledge, this 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 report;

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

4.      I  am  responsible for establishing and maintaining disclosure
 controls  and procedures (as defined in Exchange Act Rules  13a-15(e)
 and  15d-15(e))  [Omission in accordance with SEC  Release  Nos.  33-
 8238,  34-47986  and IC-26068 (June 5, 2003)] for the registrant  and
 have:

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

  (b)     [Omitted  in accordance with SEC Release Nos.  33-8238,  34-
    47986 and IC-26068 (June 5, 2003)];

  (c)     Evaluated  the effectiveness of the registrant's  disclosure
    controls   and  procedures  and  presented  in  this   report   my
    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

  (d)     Disclosed  in  this  report any change in  the  registrant's
    internal  control  over financial reporting that  occurred  during
    the  registrant's  most  recent fiscal quarter  (the  registrant's
    fourth  fiscal quarter in the case of an annual report)  that  has
    materially   affected,  or  is  reasonably  likely  to  materially
    affect,   the   registrant's  internal  control   over   financial
    reporting; and

5.      I  have  disclosed,  based  on my most  recent  evaluation  of
 internal  control  over  financial  reporting,  to  the  registrant's
 auditors  and  the  audit  committee of  the  registrant's  board  of
 directors (or persons performing the equivalent functions):

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

  (b)     Any fraud, whether or not material, that involves management
    or   other   employees  who  have  a  significant  role   in   the
    registrant's internal control over financial reporting.



Date: June 19, 2007                      /s/ SPENCER WERTHEIMER
      -------------                      ----------------------
                                   Name: Spencer Wertheimer
                                  Title: President
                                         (principal
                                          executive officer,
                                          principal financial
                                          officer) of the
                                          registrant's
                                          managing partner,
                                          EPK, Inc.


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