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        <EOYAmt>539</EOYAmt>
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        <EOYAmt>539</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
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        <EOYAmt>319051</EOYAmt>
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      <TemporarilyRstrNetAssetsGrp>
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      <ReconcilationRevenueExpnssAmt>-92126</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>true</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <AuditCommitteeInd>true</AuditCommitteeInd>
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        <CurrentTaxYearMinus3YearsAmt>41295</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>47591</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>141692</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>38028</CurrentTaxYearAmt>
        <TotalAmt>310148</TotalAmt>
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        <CurrentTaxYearMinus2YearsAmt>47591</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>141692</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>38028</CurrentTaxYearAmt>
        <TotalAmt>310148</TotalAmt>
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      <PublicSupportTotal170Amt>310148</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>5255</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>3115</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>896</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1905</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>11171</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>321319</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>105316</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.96520</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.93510</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc5">
      <ArtPublicExhibitionAmountsGrp>
        <AssetsIncludedAmt>2103000</AssetsIncludedAmt>
      </ArtPublicExhibitionAmountsGrp>
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
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        <DepreciationAmt>45044</DepreciationAmt>
        <BookValueAmt>7853</BookValueAmt>
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        <BookValueAmt>2215</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>10068</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>LONG-TERM ASSETS</Desc>
        <BookValueAmt>3053636</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>COLLECTIONS</Desc>
        <BookValueAmt>2103000</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>5156636</TotalBookValueOtherAssetsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>139944</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>139944</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>139944</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>232070</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>232070</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>232070</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 4, PART XIII</FormAndLineReferenceDesc>
        <ExplanationTxt>PART III LINE 4 - THE FOUNDATION MAINTAINS HISTORICALLY SIGNIFICANT ARTIFACTS THAT ARE PART OF THE TWO VESSELS AND ENHANCE THE VISITING PUBLIC EXPERIENCE. EXAMPLES OF ARTIFACTS ARE CONNING TOWER PERISCOPE, RADIO EQUIPMENT, SAIL, HEDGE HOG AND GUNS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc6">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MISSION OF THE CAVALLA HISTORICAL FOUNDATION IS TO PROVIDE A UNIQUE HISTORICAL, EDUCATIONAL AND PATRIOTIC EXPERIENCE TO UNDERWATER WARFARE. WE ARE COMMITTED TO PRESERVING OUR NATION'S SHIPS AND PROMOTING THE LEGACY OF THOSE WHO SERVED ABOARD SUBMARINES AND ANTI-SUBMARINE VESSELS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 WAS SUPPLIED TO THE BOARD OF DIRECTORS PRIOR TO FILING FOR THEIR REVIEW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 FOR EACH YEAR IS AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>