Exhibit
31.1

Quarterly Certifications
Pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002

I, David W. Mann, certify that:

|1. | I have reviewed this quarterly report on Form 10-QSB of
First Financial Corporation;                                                                                                                                                                                                                                        
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|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;                  
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|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 small business issuer as of, and for, the periods
presented in this report;                          
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|4. | The small business issuer's other
certifying officers 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 small business issuer and we have:                                                                        
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|   | a)                                                                                                                                                                                                                                                                                                                          
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|   | b)                                                                                                                                                                                                                                                                                                                          
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|   | c)                                                                                                                                                                                                                                                                                                                          
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|5. | The small business issuer's other certifying
officers and I have disclosed, based on our most recent evaluation of internal
control over financial reporting, to the small business issuer's auditors and
the audit committee of small business issuer's board of directors (or persons
performing the equivalent function):
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|   | a)                                                                                                                                                                                                                                                                                                                          
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|   | b)                                                                                                                                                                                                                                                                                                                          

Date: November 20, 2006

/s/
David W. MannDavid
W. Mann
Chief
Executive Officer and Chief Financial Officer