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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>E DAY WATERS</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DARIN R WOLFE</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>THERESA A KRAFT</PersonNm>
        <TitleTxt>EXECUTIVE DI</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
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        <ExclusionAmt>275</ExclusionAmt>
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        <ExclusionAmt>23566</ExclusionAmt>
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      <OtherRevenueMiscGrp>
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        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>229191</ExclusionAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>80850</ProgramServicesAmt>
        <ManagementAndGeneralAmt>13505</ManagementAndGeneralAmt>
        <FundraisingAmt>11013</FundraisingAmt>
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        <ProgramServicesAmt>230381</ProgramServicesAmt>
        <ManagementAndGeneralAmt>38481</ManagementAndGeneralAmt>
        <FundraisingAmt>31381</FundraisingAmt>
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      <PensionPlanContributionsGrp>
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        <ProgramServicesAmt>4391</ProgramServicesAmt>
        <ManagementAndGeneralAmt>734</ManagementAndGeneralAmt>
        <FundraisingAmt>598</FundraisingAmt>
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      <OtherEmployeeBenefitsGrp>
        <TotalAmt>28522</TotalAmt>
        <ProgramServicesAmt>21885</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3656</ManagementAndGeneralAmt>
        <FundraisingAmt>2981</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <ProgramServicesAmt>34158</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5705</ManagementAndGeneralAmt>
        <FundraisingAmt>4653</FundraisingAmt>
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      <FeesForServicesLegalGrp>
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        <ManagementAndGeneralAmt>59945</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>31312</TotalAmt>
        <ManagementAndGeneralAmt>31312</ManagementAndGeneralAmt>
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      <FeesForServicesProfFundraising>
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        <FundraisingAmt>63086</FundraisingAmt>
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        <ProgramServicesAmt>49548</ProgramServicesAmt>
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        <FundraisingAmt>5338</FundraisingAmt>
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        <ProgramServicesAmt>9199</ProgramServicesAmt>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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      <AllOtherExpensesGrp>
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        <ProgramServicesAmt>3685</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>294846</ManagementAndGeneralAmt>
        <FundraisingAmt>157498</FundraisingAmt>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
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      <Form990ScheduleAPartVIGrp>
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        <InvestmentEarningsOrLossesAmt>1409</InvestmentEarningsOrLossesAmt>
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      <EndowmentsHeldUnrelatedOrgInd>true</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
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        <DepreciationAmt>1058793</DepreciationAmt>
        <BookValueAmt>987637</BookValueAmt>
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      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>501215</OtherCostOrOtherBasisAmt>
        <BookValueAmt>501215</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>33335</OtherCostOrOtherBasisAmt>
        <BookValueAmt>33335</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>1522187</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>INT. IN ASSETS HELD BY OTHERS</Desc>
        <BookValueAmt>2590130</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>PLANNED GIVING RECEIVABLE</Desc>
        <BookValueAmt>5430</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>2595560</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>ACCRUED PAYROLL AND RELATED EMPLOYEE</Desc>
        <Amt>14288</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>ACCRUED EXPENSE - OTHER</Desc>
        <Amt>8000</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>INTEREST PAYABLE</Desc>
        <Amt>1067</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>SALES TAX PAYABLE</Desc>
        <Amt>227</Amt>
      </OtherLiabilitiesOrgGrp>
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      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1246576</TotalRevEtcAuditedFinclStmtAmt>
      <DonatedServicesAndUseFcltsAmt>253949</DonatedServicesAndUseFcltsAmt>
      <OtherRevenueAmt>100760</OtherRevenueAmt>
      <RevenueNotReportedAmt>354709</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>891867</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>891867</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1489339</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>253949</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>253949</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1235390</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>1235390</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 1, PART III, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUM DOES NOT CAPITALIZE ITS COLLECTIONS. THEREFORE THE COLLECTIONS, WHICH WERE ACQUIRED THROUGH PURCHASES AND CONTRIBUTIONS SINCE THE MUSEUM'S INCEPTION, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENTS OF FINANCIAL POSITION. THE COLLECTIONS OF THE MUSEUM REFLECT THE CULTURAL AND NATURAL HISTORY OF SOUTH CENTRAL PENNSYLVANIA. COLLECTIONS ARE MAINTAINED BY THE MUSEUM FOR USE IN EDUCATIONAL AND PUBLIC SERVICE ACTIVITIES AND RESEARCH. THE VARIOUS TYPES OF COLLECTIONS PRESENT IN THE MUSEUM INCLUDE THE FOLLOWING: ARCHEOLOGICAL, ETHNOGRAPHIC, ZOOLOGICAL, GEOLOGICAL, PALEONTOLOGICAL AND BOTANICAL COLLECTIONS. EACH OF THE ITEMS IS CATALOGUED, PRESERVED AND CARED FOR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 2, PART V, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>ENDOWMENT FUNDS ARE DISTRIBUTED TO SUPPORT OPERATIONAL COSTS OF THE MUSEUM IN FURTHERANCE OF ITS MISSION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUM HAS ADOPTED THE PROVISIONS OF FASB ASC 740, RELATED TO ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES. THE MUSEUM RECOGNIZES THE BENEFITS OR LIABILITY ASSOCIATED WITH A TAX POSITION DURING THE PERIOD WHICH, BASED ON ALL AVAILABLE EVIDENCE, MANAGEMENT BELIEVES IT IS "MORE LIKELY THAN NOT" (GREATER THAN FIFTY PERCENT PROBABILITY) THAT THE POSITION WILL BE SUSTAINED UPON EXAMINATION, INCLUDING THE RESOLUTION OF APPEALS OR LITIGATION PROCESSES, IF ANY. THE PORTION OF THE BENEFITS ASSOCIATED WITH INCOME TAX POSITIONS CLAIMED ON INCOME TAX RETURNS THAT DOES NOT MEET THE ABOVE THRESHOLD IS REFLECTED AS A LIABILITY FOR UNCERTAIN TAX POSITIONS IN THE ACCOMPANYING STATEMENTS OF FINANCIAL POSITION. INTEREST AND PENALTIES ASSOCIATED WITH UNCERTAIN TAX POSITIONS (THOSE NOT MEETING THE FIFTY PERCENT PROBABILITY THRESHOLD) ARE RECORDED IN THE STATEMENTS OF ACTIVITIES AND ANY RELATED ACCRUAL IS RECOGNIZED ON THE STATEMENTS OF FINANCIAL POSITION. TAX POSITIONS THAT ARE OTHER THAN ROUTINE BUSINESS TRANSACTIONS ARE RE-EVALUATED ON AN ANNUAL BASIS FOR BOTH POTENTIAL RECOGNITION AND DERECOGNITION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 4, PART XI, LINE 2D</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGE IN BENEFICIAL INTERESTS 100,760</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc5">
      <MailSolicitationsInd>X</MailSolicitationsInd>
      <EmailSolicitationsInd>X</EmailSolicitationsInd>
      <PhoneSolicitationsInd>X</PhoneSolicitationsInd>
      <InPersonSolicitationsInd>X</InPersonSolicitationsInd>
      <SolicitationOfNonGovtGrantsInd>X</SolicitationOfNonGovtGrantsInd>
      <SolicitationOfGovtGrantsInd>X</SolicitationOfGovtGrantsInd>
      <SpecialFundraisingEventsInd>X</SpecialFundraisingEventsInd>
      <AgrmtProfFundraisingActyInd>true</AgrmtProfFundraisingActyInd>
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        <PersonNm>ANDREA RUSH</PersonNm>
        <USAddress>
          <AddressLine1Txt>150 W APPLE AVE</AddressLine1Txt>
          <CityNm>MARIETTA</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>17547</ZIPCd>
        </USAddress>
        <ActivityTxt>COUNSEL</ActivityTxt>
        <FundraiserControlOfFundsInd>false</FundraiserControlOfFundsInd>
        <RetainedByContractorAmt>63086</RetainedByContractorAmt>
        <NetToOrganizationAmt>-63086</NetToOrganizationAmt>
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      <TotalRetainedByContractorsAmt>63086</TotalRetainedByContractorsAmt>
      <TotalNetToOrganizationAmt>-63086</TotalNetToOrganizationAmt>
      <LicensedStatesCd>PA</LicensedStatesCd>
      <FundraisingEventInformationGrp>
        <Event1Nm>COSMIC BASH</Event1Nm>
        <GrossReceiptsEvent1Amt>203593</GrossReceiptsEvent1Amt>
        <GrossRevenueEvent1Amt>203593</GrossRevenueEvent1Amt>
        <RentFacilityCostsEvent1Amt>12388</RentFacilityCostsEvent1Amt>
        <FoodAndBeverageEvent1Amt>5344</FoodAndBeverageEvent1Amt>
        <EntertainmentEvent1Amt>33000</EntertainmentEvent1Amt>
        <OtherDirectExpensesEvent1Amt>7670</OtherDirectExpensesEvent1Amt>
        <Event2Nm>SCIENCE FAIR</Event2Nm>
        <GrossReceiptsEvent2Amt>49200</GrossReceiptsEvent2Amt>
        <GrossRevenueEvent2Amt>49200</GrossRevenueEvent2Amt>
        <NonCashPrizesEvent2Amt>1500</NonCashPrizesEvent2Amt>
        <RentFacilityCostsEvent2Amt>13053</RentFacilityCostsEvent2Amt>
        <FoodAndBeverageEvent2Amt>5945</FoodAndBeverageEvent2Amt>
        <OtherDirectExpensesEvent2Amt>4227</OtherDirectExpensesEvent2Amt>
        <OtherEventsTotalCnt>1</OtherEventsTotalCnt>
        <GrossReceiptsOtherEventsAmt>44100</GrossReceiptsOtherEventsAmt>
        <GrossRevenueOtherEventsAmt>44100</GrossRevenueOtherEventsAmt>
        <RentFcltyCostsOtherEventsAmt>2500</RentFcltyCostsOtherEventsAmt>
        <FoodAndBeverageOtherEventsAmt>2641</FoodAndBeverageOtherEventsAmt>
        <EntertainmentOtherEventsAmt>750</EntertainmentOtherEventsAmt>
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        <FoodAndBeverageTotalEventsAmt>13930</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>33750</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>14747</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>91868</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>205025</NetIncomeSummaryAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 1, ITEM C</FormAndLineReferenceDesc>
        <ExplanationTxt>NORTH MUSEUM OF NATURE AND SCIENCE NORTH MUSEUM OF NATURAL HISTORY AND SCIENCE</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE NORTH MUSEUM SCIENCE &amp; ENGINEERING FAIR IS AFFILIATED WITH THE INTERNATIONAL SCIENCE AND ENGINEERING FAIR. WINNERS FROM THE NORTH MUSEUM SCIENCE &amp; ENGINEERING FAIR GO ON TO COMPETE AT THE ISEF, THE WORLD'S LARGEST INTERNATIONAL PRE-COLLEGE SCIENCE COMPETITION. IN SCHOOL STEM CAREER FAIRS: DESIGNED TO INTRODUCE 5TH-8TH GRADE STUDENTS TO STEM CAREERS THROUGH HANDS ON ACTIVITIES WITH EQUIPMENT AND THE GUIDANCE OF STEM PROFESSIONALS WHO SERVE AS MENTORS. DURING THE 2017-2018 SCHOOL YEAR, THE NORTH MUSEUM PROVIDED STEM CAREER FAIRS TO OVER 4000 STUDENTS AT 37 SCHOOLS, REPRESENTING AN 11% INCREASE IN STUDENTS SERVED AND A 15% INCREASE IN THE NUMBER OF SCHOOLS. STEM SISTERS: A FREE PROGRAM DESIGNED FOR GIRLS IN GRADES 6-12, OFFERING RATIONAL CAREER EXPLORATION AND MENTORSHIP OPPORTUNITIES THAT ENCOURAGE AND EMPOWER YOUNG WOMEN. THIS PROGRAM HAS GROWN 116% SINCE ITS INCEPTION. STEM AFTER SCHOOL WORKSHOPS: 12-WEEK PROGRAM STEM INTERACTIVE PROGRAM FOR 4TH - 8TH GRADE STUDENTS. THESE WORKSHOPS ARE CURRENTLY BEING OFFERED INTO ADDITIONAL SCHOOL DISTRICTS. SUMMER SCIENCE CAMPS: A SERIES OF CAMPS FOR CHILDREN IN GRADES 2-6 ARE HELD IN THE SUMMER MONTHS AT 4 PARTNER LOCATIONS, SERVING 688 CHILDREN. EARLY CHILDHOOD PROGRAMS: LITTLE EXPLORER &amp; ME AND STEM STORYTIME ARE FOR PRESCHOOL AGED CHILDREN AND THEIR CARETAKERS. THIS WILDLY POPULAR AND EXPANDING PROGRAM TEACHES CHILDREN ABOUT SCIENCE WHILE BUILDING CURIOSITY, SKILLS, AND KNOWLEDGE THROUGH PLAY. EDUCATIONAL OUTREACH: HANDS ON PROGRAMS OFFERED TO AREA SCHOOLS, CAMPS, AFTER-SCHOOL PROGRAMS, SENIOR CENTERS, SCOUTING ORGANIZATIONS, OR OTHER SPECIAL GROUPS. TOTAL ATTENDANCE AT THE MUSEUM AND PLANETARIUM: 31,014 EDUCATIONAL GROUP ATTENDANCE AT THE MUSEUM AND PLANETARIUM: 12,647 TOTAL ATTENDANCE AT EDUCATIONAL PROGRAMS: 16,743 NORTH MUSEUM SCIENCE &amp; ENGINEERING FAIR: 830 STEM SISTERS PROGRAM: 608 EDUCATIONAL OUTREACH (INCLUDING IN SCHOOL STEM CAREER FAIRS, AFTER SCHOOL STEM WORKSHOPS, AND SUMMER SCIENCE CAMP): 15,305</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUM DISTRIBUTES THE COMPLETED FORM 990 TO THE FINANCE COMMITTEE FOR REVIEW AND APPROVAL. THE TREASURER ANNOUNCES TO THE GOVERNING BOARD OF DIRECTORS WHEN THE FORM 990 IS COMPLETED AND IS AVAILABLE FOR REVIEW AND INSPECTION UPON REQUEST BY OTHER MEMBERS OF THE GOVERNING BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUM DISTRIBUTES NEW CONFLICT OF INTEREST POLICY STATEMENTS TO BOARD MEMBERS AT THE FIRST BOARD MEETING OF EACH FISCAL YEAR. THE MUSEUM MAKES EVERY EFFORT TO COLLECT SIGNED POLICIES FROM EACH BOARD MEMBER ON AN ANNUAL BASIS. REMINDERS ARE MADE DURING BOARD MEETINGS THROUGHOUT THE YEAR, STRESSING THE IMPORTANCE OF COMPLETING THE FORMS AND DISCLOSING ANY KNOWN CONFLICTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION OF THE EXECUTIVE DIRECTOR IS REVIEWED ANNUALLY AND INCREASES ARE FORMALLY APPROVED BY THE EXECUTIVE COMMITTEE AND THE BOARD OF DIRECTORS VIA ADOPTION OF THE ANNUAL OPERATING BUDGET.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUM FURNISHES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND ANNUAL AUDITED FINANCIAL STATEMENTS TO THE GENERAL PUBLIC UPON REQUEST. THE MUSEUM'S FORMS 990 ARE FURNISHED UPON REQUEST AND ARE ALSO AVAILABLE TO THE GENERAL PUBLIC VIA GUIDESTAR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGE IN BENEFICIAL INTERESTS 100,760 LOSS FOR UNCOLLECTIBLE PROMISES TO GIVE -4,499 TOTAL 96,261</ExplanationTxt>
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  </ReturnData>
</Return>