﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2023v6.0" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-08-10T11:04:24-07:00</ReturnTs>
    <TaxPeriodEndDt>2024-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>522301880</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Francis J DiSalvo CPA</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>6107 Elmendorf Drive</AddressLine1Txt>
        <CityNm>Suitland</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20746</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>521762775</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>FRIENDS OF PATUXENT RESEARCH REFUGE INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>FRIE</BusinessNameControlTxt>
      <PhoneNum>3014975789</PhoneNum>
      <USAddress>
        <AddressLine1Txt>10901 SCARLET TANAGER LOOP</AddressLine1Txt>
        <CityNm>LAUREL</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>207084011</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>STEPHANIE KAUFMAN</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>3014975789</PhoneNum>
      <SignatureDt>2025-01-23</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>Francis J DiSalvo CPA</PreparerPersonNm>
      <PTIN>P00844635</PTIN>
      <PhoneNum>3015681100</PhoneNum>
      <PreparationDt>2025-08-10</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="IRS990-01" referenceDocumentId="IRS990ScheduleO-01" softwareId="23017509">
      <DoingBusinessAsName>
        <BusinessNameLine1Txt>FRIENDS OF PATUXENT</BusinessNameLine1Txt>
      </DoingBusinessAsName>
      <PrincipalOfficerNm>RICHARD DOLESH</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>10901 SCARLET TANAGER LOOP</AddressLine1Txt>
        <CityNm>LAUREL</CityNm>
        <StateAbbreviationCd>MD</StateAbbreviationCd>
        <ZIPCd>20708</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>141065</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>www.friendsofpatuxent.org</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1992</FormationYr>
      <LegalDomicileStateCd>MD</LegalDomicileStateCd>
      <ActivityOrMissionDesc>Friends of Patuxent was formed to support the mission and programs of the Patuxent Research Refuge and the Eastern Ecological Science Center by raising funds for educational programs,exhibits,and research.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>9</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>9</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>1</TotalEmployeeCnt>
      <TotalVolunteersCnt>38</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>65626</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>59529</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>22178</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>5722</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>6398</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>16871</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>29355</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>27761</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>123557</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>109883</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>14000</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>23035</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>18007</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>17765</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>2519</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>57773</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>41408</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>89780</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>82208</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>33777</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>27675</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>319154</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>352328</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>350</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>5849</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>318804</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>346479</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>Friends of Patuxent was formed to support the mission and programs of the Patuxent Research Refuge and the Eastern Ecological Science Center by raising funds for educational programs,exhibits,and research.</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>71696</ExpenseAmt>
      <GrantAmt>23035</GrantAmt>
      <RevenueAmt>109883</RevenueAmt>
      <Desc>The Friends of Patuxent operates a bookstore at the National Wildlife Visitors Center located at the Refuge. Wildlife Images carries a selection of wildlife books, wildlife art themes, wildlife tee-shirts, posters, songbird box kits and many other educational and exciting wildlife related items to further the publics appreciation and knowledge of the activites of the Eastern Ecological Science Center and Patuxent Refuge. The Friends of Patuxent raise funds for the educational programs, exhibits, and outreach opportunities undertaken by the Patuxent Refuge and for research conducted by the Eastern Ecological Science Center.</Desc>
      <TotalProgramServiceExpensesAmt>71696</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="IRS990ScheduleA-01" referenceDocumentName="IRS990ScheduleA">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="IRS990ScheduleB-01" referenceDocumentName="IRS990ScheduleB">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">true</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD-01" referenceDocumentName="IRS990ScheduleD">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>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>1</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <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>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>9</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>9</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>false</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>true</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>true</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>false</ConflictOfInterestPolicyInd>
      <WhistleblowerPolicyInd>false</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>false</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>false</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>false</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MD</StatesWhereCopyOfReturnIsFldCd>
      <OtherWebsiteInd>X</OtherWebsiteInd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>STEPHANIE KAUFMAN</PersonNm>
        <PhoneNum>3014975789</PhoneNum>
        <USAddress>
          <AddressLine1Txt>10901 SCARLET TANAGER LOOP</AddressLine1Txt>
          <CityNm>LAUREL</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>207084011</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>RICHARD J DOLESH</PersonNm>
        <TitleTxt>CHAIR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LOWELL ADAMS</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHANIE KAUFMAN</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HELEN LOWE METZMAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>KAREN H ATWOOD</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ABBY G ERSHOW</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LIZ HUMES</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROSS A FELDNER</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LINDA CONBOY</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SANDY SPENCER</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK E TOMASSONI</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANN CARLSON</PersonNm>
        <TitleTxt>BOOKSTORE MANAGER</TitleTxt>
        <KeyEmployeeInd>X</KeyEmployeeInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <FederatedCampaignsAmt>3377</FederatedCampaignsAmt>
      <MembershipDuesAmt>5120</MembershipDuesAmt>
      <AllOtherContributionsAmt>51032</AllOtherContributionsAmt>
      <NoncashContributionsAmt>12112</NoncashContributionsAmt>
      <TotalContributionsAmt>59529</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>SPEAKER SERIES</Desc>
        <BusinessCd>813410</BusinessCd>
        <TotalRevenueColumnAmt>922</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>BAZAAR</Desc>
        <BusinessCd>813410</BusinessCd>
        <TotalRevenueColumnAmt>4800</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>5722</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>16871</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossSalesOfInventoryAmt>58943</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>31182</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>27761</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>27761</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>109883</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>50354</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>23035</TotalAmt>
        <ProgramServicesAmt>23035</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>16503</TotalAmt>
        <ProgramServicesAmt>16503</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PayrollTaxesGrp>
        <TotalAmt>1262</TotalAmt>
        <ProgramServicesAmt>1262</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>5000</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5000</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </FeesForServicesAccountingGrp>
      <AdvertisingGrp>
        <TotalAmt>1373</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>1373</FundraisingAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>7139</TotalAmt>
        <ProgramServicesAmt>7139</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
        <TotalAmt>12112</TotalAmt>
        <ProgramServicesAmt>12112</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OccupancyGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>1146</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>1146</FundraisingAmt>
      </ConferencesMeetingsGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>1259</TotalAmt>
        <ProgramServicesAmt>1259</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>3499</TotalAmt>
        <ProgramServicesAmt>2393</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1106</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>NEWSLETTERS &amp; PRINTING</Desc>
        <TotalAmt>2207</TotalAmt>
        <ProgramServicesAmt>1138</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1069</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK&amp;MERCHANT FEES</Desc>
        <TotalAmt>3441</TotalAmt>
        <ProgramServicesAmt>3441</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PAYROLL SERVICE</Desc>
        <TotalAmt>2422</TotalAmt>
        <ProgramServicesAmt>2422</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>DUES &amp; SUBSCRIPTIONS</Desc>
        <TotalAmt>102</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>102</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>1708</TotalAmt>
        <ProgramServicesAmt>992</ProgramServicesAmt>
        <ManagementAndGeneralAmt>716</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>82208</TotalAmt>
        <ProgramServicesAmt>71696</ProgramServicesAmt>
        <ManagementAndGeneralAmt>7993</ManagementAndGeneralAmt>
        <FundraisingAmt>2519</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>235229</BOYAmt>
        <EOYAmt>221141</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>15296</BOYAmt>
        <EOYAmt>15886</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>28519</BOYAmt>
        <EOYAmt>28282</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>4890</BOYAmt>
        <EOYAmt>5160</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>6796</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>2956</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>1227</BOYAmt>
        <EOYAmt>3840</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>33993</BOYAmt>
        <EOYAmt>78019</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>319154</BOYAmt>
        <EOYAmt>352328</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>350</BOYAmt>
        <EOYAmt>5849</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>350</BOYAmt>
        <EOYAmt>5849</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>255449</BOYAmt>
        <EOYAmt>281692</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>63355</BOYAmt>
        <EOYAmt>64787</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>318804</BOYAmt>
        <EOYAmt>346479</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>319154</BOYAmt>
        <EOYAmt>352328</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>27675</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA-01" softwareId="23017509">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <OtherSupportSumAmt>0</OtherSupportSumAmt>
      <PublicSupportCY170Pct>0</PublicSupportCY170Pct>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>29519</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>49036</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>42156</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>53514</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>59529</CurrentTaxYearAmt>
        <TotalAmt>233754</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>25628</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>11587</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>40513</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>83156</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>58943</CurrentTaxYearAmt>
        <TotalAmt>219827</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <GrossReceiptsNonUnrltBusGrp>
        <TotalAmt>0</TotalAmt>
      </GrossReceiptsNonUnrltBusGrp>
      <TaxRevLeviedOrgnztnlBnft509Grp>
        <TotalAmt>0</TotalAmt>
      </TaxRevLeviedOrgnztnlBnft509Grp>
      <GovtFurnSrvcFcltsVl509Grp>
        <CurrentTaxYearMinus4YearsAmt>12112</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>12112</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>12112</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>12112</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>12112</CurrentTaxYearAmt>
        <TotalAmt>60560</TotalAmt>
      </GovtFurnSrvcFcltsVl509Grp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>67259</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>72735</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>94781</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>148782</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>130584</CurrentTaxYearAmt>
        <TotalAmt>514141</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>514141</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>858</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>289</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>410</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6398</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>16871</CurrentTaxYearAmt>
        <TotalAmt>24826</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>858</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>289</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>410</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6398</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>16871</CurrentTaxYearAmt>
        <TotalAmt>24826</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <TotalAmt>538967</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.95390</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.98160</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.04610</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.01840</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB-01">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD-01" softwareId="23017509">
      <EquipmentGrp>
        <InvestmentCostOrOtherBasisAmt>6796</InvestmentCostOrOtherBasisAmt>
        <DepreciationAmt>2956</DepreciationAmt>
        <BookValueAmt>3840</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>3840</TotalBookValueLandBuildingsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>109883</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>109883</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>109883</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>82208</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>82208</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>82208</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="23017509">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Memberships are available to the public to support the missions and programs of the Patuxent Research Refuge and the Eastern Ecological Science Center.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>An independent accountant prepares Form 990 and the Friends of Patuxent reviews it.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The public can see the governing documents and financial statements during the year by sending a request to the Friends of Patuxent at 10901 Scarlet Tanager Loop, Laurel M D 20708-4011</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>