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    <TaxPeriodEndDt>2016-12-31</TaxPeriodEndDt>
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      <PreparerFirmName>
        <BusinessNameLine1Txt>PAUL MISHKIN CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>4249 NW 64TH DRIVE</AddressLine1Txt>
        <CityNm>BOCA RATON</CityNm>
        <StateAbbreviationCd>FL</StateAbbreviationCd>
        <ZIPCd>33496</ZIPCd>
      </PreparerUSAddress>
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    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2016-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>061603870</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THE ROCK FOUNDATION</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ROCK</BusinessNameControlTxt>
      <PhoneNum>2038696734</PhoneNum>
      <USAddress>
        <AddressLine1Txt>79 PECKSLAND ROAD</AddressLine1Txt>
        <CityNm>GREENWICH</CityNm>
        <StateAbbreviationCd>CT</StateAbbreviationCd>
        <ZIPCd>06831</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>PETER O SCANNELL</PersonNm>
      <PersonTitleTxt>TRUSTEE</PersonTitleTxt>
      <PhoneNum>2038696734</PhoneNum>
      <SignatureDt>2017-04-12</SignatureDt>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>PAUL MISHKIN CPA</PreparerPersonNm>
      <PhoneNum>5612457408</PhoneNum>
      <PreparationDt>2017-09-17</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
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      <IPDt>2017-09-17</IPDt>
      <IPTm>09:17:40</IPTm>
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    <BuildTS>2021-01-29 14:40:06Z</BuildTS>
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      <AnalysisOfRevenueAndExpenses>
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        <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
        <RetainedEarningBOYAmt>4063820</RetainedEarningBOYAmt>
        <RetainedEarningEOYAmt>4602775</RetainedEarningEOYAmt>
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          <PropertyDesc>ROCKEFELLER BALANCED FUND LP (K-1)</PropertyDesc>
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        <TaxUnderSection511Amt>0</TaxUnderSection511Amt>
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        <AppliedToEsTaxAmt>2500</AppliedToEsTaxAmt>
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        <OriginalReturnOverpaymentAmt>-2891</OriginalReturnOverpaymentAmt>
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        <EsPenaltyAmt>26</EsPenaltyAmt>
        <OverpaymentAmt>1420</OverpaymentAmt>
        <AppliedToESTaxAmt>1420</AppliedToESTaxAmt>
      </ExciseTaxBasedOnInvstIncmGrp>
      <StatementsRegardingActyGrp>
        <LegislativePoliticalActyInd>false</LegislativePoliticalActyInd>
        <MoreThan100SpentInd>false</MoreThan100SpentInd>
        <Form1120POLFiledInd>false</Form1120POLFiledInd>
        <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
        <ChangesToArticlesOrBylawsInd>false</ChangesToArticlesOrBylawsInd>
        <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
        <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
        <Section508eRqrSatisfiedInd>true</Section508eRqrSatisfiedInd>
        <AtLeast5000InAssetsInd>true</AtLeast5000InAssetsInd>
        <OrgReportOrRegisterStateCd>CT</OrgReportOrRegisterStateCd>
        <Form990PFFiledWithAttyGenInd>true</Form990PFFiledWithAttyGenInd>
        <PrivateOperatingFoundationInd>false</PrivateOperatingFoundationInd>
        <NewSubstantialContributorsInd>true</NewSubstantialContributorsInd>
        <OwnControlledEntityInd>false</OwnControlledEntityInd>
        <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
        <ComplyWithPublicInspRqrInd>true</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
        <IndividualWithBooksNm>PETER SCANNELL</IndividualWithBooksNm>
        <PhoneNum>2038696734</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>43 ARCH STREET</AddressLine1Txt>
          <CityNm>GREENWICH</CityNm>
          <StateAbbreviationCd>CT</StateAbbreviationCd>
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        <FurnGoodsDisqualifiedPrsnInd>false</FurnGoodsDisqualifiedPrsnInd>
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        <UncorrectedPriorActsInd>false</UncorrectedPriorActsInd>
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        <BusinessHoldingsInd>false</BusinessHoldingsInd>
        <JeopardyInvestmentsInd>false</JeopardyInvestmentsInd>
        <UncorrectedPYJeopardyInvstInd>false</UncorrectedPYJeopardyInvstInd>
        <InfluenceLegislationInd>false</InfluenceLegislationInd>
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        <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
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        <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
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          <USAddress>
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            <ZIPCd>06831</ZIPCd>
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        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>JEAN G SCANNELL</PersonNm>
          <USAddress>
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          <TitleTxt>TRUSTEE</TitleTxt>
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        <CompOfHghstPdEmplOrNONETxt>NONE</CompOfHghstPdEmplOrNONETxt>
        <OtherEmployeePaidOver50kCnt>0</OtherEmployeePaidOver50kCnt>
        <CompOfHghstPdCntrctOrNONETxt>NONE</CompOfHghstPdCntrctOrNONETxt>
        <ContractorPaidOver50kCnt>0</ContractorPaidOver50kCnt>
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        <AdjustedTotalFMVOfUnusedAstAmt>5367309</AdjustedTotalFMVOfUnusedAstAmt>
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        <ContributingManagerNm>PETER O SCANNELL</ContributingManagerNm>
        <ContributingManagerNm>JEAN G SCANNELL</ContributingManagerNm>
        <OnlyContriToPreselectedInd>X</OnlyContriToPreselectedInd>
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          <RecipientUSAddress>
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            <CityNm>LOS ANGELES</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>90904</ZIPCd>
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          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
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          <Amt>10000</Amt>
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        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>ST JOSEPH'S PARENTING CENTER</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>566 ELM STREET</AddressLine1Txt>
            <CityNm>STAMFORD</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06902</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>FAMILIES THROUGHSTRENGTHENINGPARENT EDUCATION</GrantOrContributionPurposeTxt>
          <Amt>25000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>ABILIS INC</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>50 GLENVILLE STREET</AddressLine1Txt>
            <CityNm>GREENWICH</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06831</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>SERVICES FOR PEOPLE WITHDEVELOPMENTAL DISABILITIES</GrantOrContributionPurposeTxt>
          <Amt>5000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>DARTMOUTH COLLEGE</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>6066 DEVELOPMENT OFFICE</AddressLine1Txt>
            <CityNm>HANOVER</CityNm>
            <StateAbbreviationCd>NH</StateAbbreviationCd>
            <ZIPCd>03755</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>GENERAL FUND</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>NEIGHBORS LINK</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>75 SELLECK ST</AddressLine1Txt>
            <CityNm>STAMFORD</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06902</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>IMMIGRANTS INTOINTEGRATION OFCOMMUNITY</GrantOrContributionPurposeTxt>
          <Amt>15000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>SMITH COLLEGE</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>10 ELM STREET</AddressLine1Txt>
            <CityNm>NORTHAMPTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>01060</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>GENERAL FUND</GrantOrContributionPurposeTxt>
          <Amt>25000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>CLICC-CT APPLESEED</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>141 FRANKLIN STREET</AddressLine1Txt>
            <CityNm>STAMFORD</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06901</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>INCARCERATED PARENTS ANDCONNECTING THROUGH LITERACYTHEIR CHILDREN</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>DREAMYARD</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>1085 WASHINGTON AVENUE</AddressLine1Txt>
            <CityNm>BRONX</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10456</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OPPORTUNITY THROUGH THE ARTSBUILDS PATHWAYS TO EQUITY AND</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>THE WATERSIDE SCHOOL</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>77 PACIFIC STREET</AddressLine1Txt>
            <CityNm>STAMFORD</CityNm>
            <StateAbbreviationCd>CT</StateAbbreviationCd>
            <ZIPCd>06902</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>OF INCOME OR CIRCUMSTANCERIGOROUS EDUCATION REGARDLESS</GrantOrContributionPurposeTxt>
          <Amt>1000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>A BETTER CHANCE</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>253 W35TH STREET</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10001</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>FOR LOW INCOME STUDENTSEDUCATIONAL OPPORTUNITIESFOSTER TOWN PRIDE</GrantOrContributionPurposeTxt>
          <Amt>50000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>TEACH FOR AMERICA</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>25 BROADWAY</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10004</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>FOR LOW INCOMERECRUITING TEACHERSCOMMUNITIES</GrantOrContributionPurposeTxt>
          <Amt>500</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientPersonNm>PLANNED PARENTHOOD</RecipientPersonNm>
          <RecipientUSAddress>
            <AddressLine1Txt>26 BLEECKER STREET</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10012</ZIPCd>
          </RecipientUSAddress>
          <RecipientFoundationStatusTxt>PUBLIC</RecipientFoundationStatusTxt>
          <GrantOrContributionPurposeTxt>WOMEN'S HEALTH</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>261500</TotalGrantOrContriPdDurYrAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <DivAndIntFromSecPartVIIGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>57135</ExclusionAmt>
        </DivAndIntFromSecPartVIIGrp>
        <OtherInvestmentIncmPartVIIGrp>
          <ExclusionCd>14</ExclusionCd>
          <ExclusionAmt>1063</ExclusionAmt>
        </OtherInvestmentIncmPartVIIGrp>
        <SubtotalsIncmProducingActyGrp>
          <ExclusionAmt>58198</ExclusionAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>58198</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>false</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>false</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>false</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>false</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>false</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>false</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>false</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>false</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>false</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>false</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <IRS990ScheduleB documentId="00000002">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <GeneralRuleInd>X</GeneralRuleInd>
      <ContributorInformationGrp>
        <ContributorNum>1</ContributorNum>
        <ContributorPersonNm>PETER O SCANNELL</ContributorPersonNm>
        <ContributorUSAddress>
          <AddressLine1Txt>70 ZACCHEUS MEAD LANE</AddressLine1Txt>
          <CityNm>GREENWICH</CityNm>
          <StateAbbreviationCd>CT</StateAbbreviationCd>
          <ZIPCd>06831</ZIPCd>
        </ContributorUSAddress>
        <TotalContributionsAmt>763900</TotalContributionsAmt>
        <NoncashContributionInd>X</NoncashContributionInd>
      </ContributorInformationGrp>
      <NonCashPropertyContributionGrp>
        <ContributorNum>1</ContributorNum>
        <NoncashPropertyDesc>10,000 SHARES COMMON STOCK OF CRANE CO</NoncashPropertyDesc>
        <FairMarketValueAmt>763900</FairMarketValueAmt>
        <ReceivedDt>2016-12-12</ReceivedDt>
      </NonCashPropertyContributionGrp>
    </IRS990ScheduleB>
    <InvestmentsCorpStockSchedule documentId="00000004">
      <InvestmentsCorporateStockGrp>
        <StockNm>RAYMOND JAMES (GENESEE &amp; WYOMING)</StockNm>
        <EOYBookValueAmt>1930946</EOYBookValueAmt>
        <EOYFMVAmt>3258553</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
      <InvestmentsCorporateStockGrp>
        <StockNm>ROCKEFELLER BALANCED FUND LP AND CRANE CO</StockNm>
        <EOYBookValueAmt>2563965</EOYBookValueAmt>
        <EOYFMVAmt>2978302</EOYFMVAmt>
      </InvestmentsCorporateStockGrp>
    </InvestmentsCorpStockSchedule>
    <OtherExpensesSchedule documentId="00000005">
      <OtherExpensesScheduleGrp>
        <Desc>ROCKEFELLER K-1</Desc>
        <RevenueAndExpensesPerBooksAmt>19163</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>19163</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>19163</AdjustedNetIncomeAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncomeSchedule2 documentId="00000006">
      <OtherIncomeDetail>
        <Desc>ROCKEFELLER K-1</Desc>
        <RevenueAndExpensesPerBooksAmt>1063</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>1063</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>1063</AdjustedNetIncomeAmt>
      </OtherIncomeDetail>
    </OtherIncomeSchedule2>
    <TaxesSchedule documentId="00000007">
      <TaxesDetail>
        <CategoryTxt>Excise tax</CategoryTxt>
        <Amt>1380</Amt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>