﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2024v5.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-10-10T06:01:51-00:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>823828940</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Patricia A Murphy CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>33 Barker Avenue</AddressLine1Txt>
        <CityNm>White Plains</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>10601</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>133944453</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Bronxville Historical Conservancy Inc</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>BRON</BusinessNameControlTxt>
      <PhoneNum>9143376500</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO Box 989</AddressLine1Txt>
        <CityNm>Bronxville</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>10708</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Peter Hicks</PersonNm>
      <PersonTitleTxt>Treasurer</PersonTitleTxt>
      <PhoneNum>9143376500</PhoneNum>
      <SignatureDt>2025-09-10</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>Patricia A Murphy</PreparerPersonNm>
      <PTIN>P01459752</PTIN>
      <PhoneNum>9146810113</PhoneNum>
      <PreparationDt>2025-08-22</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990 documentId="990" softwareId="24019898" softwareVersionNum="24.0.1.0">
      <PrincipalOfficerNm>SuzanneDavisMike Heraty Co-Chairs</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>Box 989</AddressLine1Txt>
        <CityNm>Bronxville</CityNm>
        <StateAbbreviationCd>NY</StateAbbreviationCd>
        <ZIPCd>10708</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>591265</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.BRONXVILLEHISTORICALCONSERVANCY.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1998</FormationYr>
      <LegalDomicileStateCd>NY</LegalDomicileStateCd>
      <ActivityOrMissionDesc>The Bronxville Historical Conservancy was established to further the understanding and appreciation of the history and current life in the Village of Bronxville, New York.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>35</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>24</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>58190</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>59552</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>2380</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>20791</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>365147</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>510922</CYInvestmentIncomeAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>425717</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>591265</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>65721</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>157516</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>65721</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>157516</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>359996</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>433749</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>3888422</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>4278081</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>20983</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>21783</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>3867439</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>4256298</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>The Bronxville Historical Conservancy was established to further the understanding and appreciation of the history and current life in the Village of Bronxville, New York.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>124155</ExpenseAmt>
      <Desc>Presentation of programs, lectures and special events, including Brendan Gill lecture series on presidential history, childrens programs and World War I historical events in Bronxville</Desc>
      <TotalProgramServiceExpensesAmt>124155</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="990A">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd>false</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd>false</DonorAdvisedFundInd>
      <ConservationEasementsInd>false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="990D">true</CollectionsOfArtInd>
      <CreditCounselingInd>false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="990D">true</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="990D">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd>false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd>false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="990D">true</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd>false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd>false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd>false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd>false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>false</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>4</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>false</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>false</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>false</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>false</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>35</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>24</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>false</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>false</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>false</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>false</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>NY</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>Peter Hicks</PersonNm>
        <PhoneNum>9147879330</PhoneNum>
        <USAddress>
          <AddressLine1Txt>PO Box 989</AddressLine1Txt>
          <CityNm>Bronxville</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10601</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>William Zambelli</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Erin Saluti</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Tina Adams</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Suzanne Davis</PersonNm>
        <TitleTxt>Co-Chair</TitleTxt>
        <AverageHoursPerWeekRt>003.50</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Chris Goff</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mike Heraty</PersonNm>
        <TitleTxt>Co-Chair</TitleTxt>
        <AverageHoursPerWeekRt>003.50</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peter Hicks</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>003.50</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Maggie Marrone</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHoursPerWeekRt>003.50</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Saskia Martin</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Michelle McBride</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Lisa Rao</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Dana Burns</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Cece Heraty</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Lorraine Shanley</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Lyndal Vermette</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Marilynn Hill</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jim Purdy</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Nancy Marshall</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Donald Gray</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Dale Walker</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Judith Unis</PersonNm>
        <TitleTxt>Executuve Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Nancy Vittorini</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jayne Warman</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Robert Wein</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>David Nathans</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Robert Riggs</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Will Fulton</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Betsy Putnam</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Charlotte Sullivan</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peggy Conway</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Ellen de Saint Phalle</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Bill Fredericks</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Judy Foley</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jack Bierwirth</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>William Dowling</PersonNm>
        <TitleTxt>Executive Board</TitleTxt>
        <AverageHoursPerWeekRt>000.75</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>1</CntrctRcvdGreaterThan100KCnt>
      <MembershipDuesAmt>52427</MembershipDuesAmt>
      <AllOtherContributionsAmt>7125</AllOtherContributionsAmt>
      <TotalContributionsAmt>59552</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Publications</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>285</TotalRevenueColumnAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Historical events</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>20506</TotalRevenueColumnAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>20791</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>510922</TotalRevenueColumnAmt>
      </InvestmentIncomeGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>591265</TotalRevenueColumnAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>0</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>0</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>0</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>0</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>0</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>0</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising></FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>0</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>2394</TotalAmt>
        <ManagementAndGeneralAmt>2394</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>0</TotalAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>0</TotalAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>0</TotalAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>0</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>0</TotalAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>1850</TotalAmt>
        <ManagementAndGeneralAmt>1850</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>3117</TotalAmt>
        <ManagementAndGeneralAmt>3117</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Projects</Desc>
        <TotalAmt>42933</TotalAmt>
        <ProgramServicesAmt>42933</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Events</Desc>
        <TotalAmt>77843</TotalAmt>
        <ProgramServicesAmt>77843</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Storage</Desc>
        <TotalAmt>5340</TotalAmt>
        <ManagementAndGeneralAmt>5340</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Professional fees</Desc>
        <TotalAmt>20660</TotalAmt>
        <ManagementAndGeneralAmt>20660</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>3379</TotalAmt>
        <ProgramServicesAmt>3379</ProgramServicesAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>157516</TotalAmt>
        <ProgramServicesAmt>124155</ProgramServicesAmt>
        <ManagementAndGeneralAmt>33361</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>44537</BOYAmt>
        <EOYAmt>24079</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>46036</BOYAmt>
        <EOYAmt>315452</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>1447</BOYAmt>
        <EOYAmt>6544</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>9848</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>3700</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>7400</BOYAmt>
        <EOYAmt>6148</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>3451384</BOYAmt>
        <EOYAmt>3584000</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>337618</BOYAmt>
        <EOYAmt>341858</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>3888422</BOYAmt>
        <EOYAmt>4278081</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>10495</BOYAmt>
        <EOYAmt>10759</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>10488</BOYAmt>
        <EOYAmt>11024</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>20983</BOYAmt>
        <EOYAmt>21783</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>3867439</BOYAmt>
        <EOYAmt>4256298</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>3867439</BOYAmt>
        <EOYAmt>4256298</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>3888422</BOYAmt>
        <EOYAmt>4278081</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>433749</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-44890</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>true</AccountantCompileOrReviewInd>
      <AcctCompileOrReviewBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </AcctCompileOrReviewBasisGrp>
      <FSAuditedInd>false</FSAuditedInd>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="990A" softwareId="24019898" softwareVersionNum="24.0.1.0">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>52850</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>55550</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>89925</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>58190</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>59552</CurrentTaxYearAmt>
        <TotalAmt>316067</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>52850</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>55550</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>89925</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>58190</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>59552</CurrentTaxYearAmt>
        <TotalAmt>316067</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>316067</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>111481</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>134349</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>173760</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>365147</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>510922</CurrentTaxYearAmt>
        <TotalAmt>1295659</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>1611726</TotalSupportAmt>
      <PublicSupportCY170Pct>0.19610</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.27250</PublicSupportPY170Pct>
      <TenPctFactsCrcmstncsTestCYInd>X</TenPctFactsCrcmstncsTestCYInd>
      <FactsAndCircumstancesTestTxt>Part II Section C Line 17a The Bronxville Historical Conservancy the Conservancy was established in 1998 to further the understanding of the history and current life of the Village of Bronxville, New York. Bronxvilles population is 6,749.The Conservancy has approximately 475 members. Historically, the Conservancys public financial support has normally exceeded 33 1/3 of total support on the 5 year Form 990 averaging test.</FactsAndCircumstancesTestTxt>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>As noted in the Form 990, however, in 2023 and 2024 this percentage related to the applicable 5-year test declined to under 33 1/3 but still greater than 10 not due to a material decline in public support but due to market conditions that increased the Conservancys investment income. The Conservancy is a membership organization, and its solicitations of memberships are designed to enroll a substantial number of persons, both in Bronxville and in surrounding communities.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Conservancy is organized and operated to solicit new and additional public support on a continuous basis. It maintains a continuous and bona fide program for solicitation of funds through its website, which facilitates online contributions. It invites contributions from the public at the numerous public events which it organizes and sponsors. It also solicits contributions through regular emails to past contributors and potential future contributors.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Conservancys contributors comprise a representative number of persons with an interest in its purpose and activities. To the Conservancys knowledge, no contributor has any financial interest in the Conservancy or its operations. No one person contributed more than 2 of the Conservancys total support in 2024.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Conservancys 35-member Board of Directors its governing body comprises a representative sample of residents of Bronxville Village and its environs. It consist of 24 voting members elected by the membership, and 11 non-voting executive members, and includes people with knowledge of and expertise in history, civic leaders, an elected government official and people with an interest in history education in the public schools.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>Pursuant to its By-laws, the Conservancys voting board members are elected by its individual members, at annual meetings to which all members are invited by email. The minimum cost of membership is 100 or 50 for people over 65 and has been fixed at a rate intended to make membership available to a broad cross section of the communities that the Conservancy serves.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Conservancys public activities are designed to appeal to persons having a broad common interest in history, public affairs and education. They include tours of architecturally significant homes, occasional tours of art museums and historical sites, events designed to interest children in history, and an annual lecture series the Brendan Gill Lecture featuring prominent historians and other significant public figures. The Gill Lecture is open to the public and free of charge.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>The 2024 Gill Lecture was given by historian Doris Kearns Goodwin. In the recent past the Conservancy provided over 100,000 to Bronxville Village for the refurbishment of cobblestone streets and stone pillars dating from the Villages founding. The Conservancy has also committed to help the Village government fund tree canopy preservation and refurbishment of original street signs.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part II Section C Line 17a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Village of Bronxville was originally founded as an artists colony. The Conservancy has curated and maintains a small collection of paintings by earlier residents depicting how the Village looked at the turn of the twentieth century. The collection is housed in the Villages town hall and is open to the public.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="990D" softwareId="24019898" softwareVersionNum="24.0.1.0">
      <ArtPublicExhibitionAmountsGrp>
        <AssetsIncludedAmt>341858</AssetsIncludedAmt>
      </ArtPublicExhibitionAmountsGrp>
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <InclEscrowCustodialAcctLiabInd>false</InclEscrowCustodialAcctLiabInd>
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>3497420</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>466032</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>3963452</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>2974050</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>523370</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>3497420</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>3366121</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>-392071</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2974050</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>2742424</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>623697</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>3366121</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>2520577</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>221847</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2742424</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <BoardDesignatedBalanceEOYPct>1.00000</BoardDesignatedBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>false</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>9848</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>3700</DepreciationAmt>
        <BookValueAmt>6148</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>6148</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>Financial derivatives and other financial products</Desc>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Closely-held equity interests</Desc>
      </OtherSecuritiesGrp>
      <OtherAssetsOrgGrp>
        <Desc>Art collection</Desc>
        <BookValueAmt>341858</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>341858</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Federal income taxes</Desc>
      </OtherLiabilitiesOrgGrp>
      <TotalRevEtcAuditedFinclStmtAmt>546375</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-44890</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>-44890</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>591265</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>591265</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>157516</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>157516</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>157516</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="990O" softwareId="24019898" softwareVersionNum="24.0.1.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 and related schedules are prepared by an outside accountant and reviewed by the Conservancy co-chairs, treasurer and Board of Directors before filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The Conservancy makes all documents available on request in writing or electronic mail. In addition, Form 990 and attachments are made available on Guidestar.org.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>