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        <BusinessCd>713990</BusinessCd>
        <TotalRevenueColumnAmt>88758</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>88758</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>EDUCATION, CLASSES</Desc>
        <BusinessCd>713990</BusinessCd>
        <TotalRevenueColumnAmt>24168</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>24168</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>RESEARCH SERVICES</Desc>
        <BusinessCd>713990</BusinessCd>
        <TotalRevenueColumnAmt>2710</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2710</RelatedOrExemptFuncIncomeAmt>
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      <TotalProgramServiceRevenueAmt>115636</TotalProgramServiceRevenueAmt>
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        <ExclusionAmt>28391</ExclusionAmt>
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      <GrossRentsGrp>
        <RealAmt>368870</RealAmt>
        <PersonalAmt>24171</PersonalAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
        <PersonalAmt>4970</PersonalAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>368870</RealAmt>
        <PersonalAmt>19201</PersonalAmt>
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      <NetRentalIncomeOrLossGrp>
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        <RelatedOrExemptFuncIncomeAmt>368870</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>19201</UnrelatedBusinessRevenueAmt>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>85478</SecuritiesAmt>
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      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>39300</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>46178</SecuritiesAmt>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>46178</TotalRevenueColumnAmt>
        <ExclusionAmt>46178</ExclusionAmt>
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      <FundraisingGrossIncomeAmt>13029</FundraisingGrossIncomeAmt>
      <ContriRptFundraisingEventAmt>33066</ContriRptFundraisingEventAmt>
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      <NetIncmFromFundraisingEvtGrp>
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        <ExclusionAmt>-5486</ExclusionAmt>
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      <NetIncomeFromGamingGrp>
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        <BusinessCd>713990</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>3072</RelatedOrExemptFuncIncomeAmt>
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        <UnrelatedBusinessRevenueAmt>19201</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>68072</ExclusionAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>43374</ProgramServicesAmt>
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        <FundraisingAmt>858</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <ManagementAndGeneralAmt>15397</ManagementAndGeneralAmt>
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      <FeesForServicesOtherGrp>
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        <ProgramServicesAmt>66055</ProgramServicesAmt>
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      <AdvertisingGrp>
        <TotalAmt>27537</TotalAmt>
        <ProgramServicesAmt>27537</ProgramServicesAmt>
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      <OfficeExpensesGrp>
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        <ProgramServicesAmt>23849</ProgramServicesAmt>
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      <OccupancyGrp>
        <TotalAmt>138143</TotalAmt>
        <ProgramServicesAmt>131236</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6907</ManagementAndGeneralAmt>
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      <ConferencesMeetingsGrp>
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        <ProgramServicesAmt>1800</ProgramServicesAmt>
        <ManagementAndGeneralAmt>5400</ManagementAndGeneralAmt>
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      <DepreciationDepletionGrp>
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        <ProgramServicesAmt>89856</ProgramServicesAmt>
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      <InsuranceGrp>
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        <ProgramServicesAmt>23655</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1245</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>UBI TAXES</Desc>
        <TotalAmt>4771</TotalAmt>
        <ManagementAndGeneralAmt>4771</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <TotalAmt>4608</TotalAmt>
        <ManagementAndGeneralAmt>4608</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>STAFF DEVELOPMENT</Desc>
        <TotalAmt>3038</TotalAmt>
        <ManagementAndGeneralAmt>3038</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
        <Desc>LICENSES &amp; FEES</Desc>
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        <ManagementAndGeneralAmt>1025</ManagementAndGeneralAmt>
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      <AllOtherExpensesGrp>
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        <ProgramServicesAmt>-4970</ProgramServicesAmt>
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        <EOYAmt>230303</EOYAmt>
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        <EOYAmt>9334</EOYAmt>
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      <InventoriesForSaleOrUseGrp>
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        <EOYAmt>6500</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
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        <EOYAmt>15421</EOYAmt>
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      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>23053</EOYAmt>
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        <EOYAmt>1085483</EOYAmt>
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        <EOYAmt>22327</EOYAmt>
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        <EOYAmt>3347013</EOYAmt>
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        <EOYAmt>37009</EOYAmt>
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      <DeferredRevenueGrp>
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        <EOYAmt>76253</EOYAmt>
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      <OtherLiabilitiesGrp>
        <BOYAmt>7164</BOYAmt>
        <EOYAmt>5414</EOYAmt>
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        <EOYAmt>118676</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
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        <EOYAmt>2142855</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>1085482</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>3228337</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>3445473</BOYAmt>
        <EOYAmt>3347013</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-171715</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>58828</NetUnrlzdGainsLossesInvstAmt>
      <PriorPeriodAdjustmentsAmt>8721</PriorPeriodAdjustmentsAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>281717</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>314524</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>534372</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>515066</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>381577</CurrentTaxYearAmt>
        <TotalAmt>2027256</TotalAmt>
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      <TotalCalendarYear170Grp>
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        <CurrentTaxYearMinus3YearsAmt>314524</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>534372</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>515066</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>381577</CurrentTaxYearAmt>
        <TotalAmt>2027256</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>100933</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>1926323</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>25835</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>20207</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>18685</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>18801</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>28391</CurrentTaxYearAmt>
        <TotalAmt>111919</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <UnrelatedBusinessNetIncm170Grp>
        <CurrentTaxYearMinus4YearsAmt>52912</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>37275</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>17740</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>15341</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>12704</CurrentTaxYearAmt>
        <TotalAmt>135972</TotalAmt>
      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>1031</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1692</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>642</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>25</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>3072</CurrentTaxYearAmt>
        <TotalAmt>6462</TotalAmt>
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      <TotalSupportAmt>2281609</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>1885469</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.84430</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.82890</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <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>
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    </IRS990ScheduleB>
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      </HeldWorksArtGrp>
      <CollectionUsedPubExhibitionInd>X</CollectionUsedPubExhibitionInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <SolicitedAssetsSaleInd>0</SolicitedAssetsSaleInd>
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>1032198</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>124687</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>56229</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>15174</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>1085482</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1226431</BeginningYearBalanceAmt>
        <ContributionsAmt>6154</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>-130268</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>52418</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>17701</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>1032198</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1075563</BeginningYearBalanceAmt>
        <ContributionsAmt>100</ContributionsAmt>
        <InvestmentEarningsOrLossesAmt>213259</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>45413</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>17078</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>1226431</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1003960</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>132350</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>45681</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>15066</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>1075563</EndYearBalanceAmt>
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      <CYMinus4YrEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>158250</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>43981</OtherExpendituresAmt>
        <AdministrativeExpensesAmt>14709</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>1003960</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <PrmnntEndowmentBalanceEOYPct>0.49970</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.50030</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>1</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <LandGrp>
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        <BookValueAmt>684199</BookValueAmt>
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      <BuildingsGrp>
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        <BookValueAmt>991124</BookValueAmt>
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      <EquipmentGrp>
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        <BookValueAmt>13678</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>993328</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>791880</DepreciationAmt>
        <BookValueAmt>201448</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>1890449</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>RUSS PRATT TRUST</Desc>
        <BookValueAmt>543102</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>ENDOWMENT FUND</Desc>
        <BookValueAmt>192231</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>BENEFICIAL INTEREST IN SPLIT INTEREST</Desc>
        <BookValueAmt>350150</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>1085483</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>RENTAL SECURITY DEPOSITS</Desc>
        <Amt>5414</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>5414</TotalLiabilityAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 1A:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION DOES NOT PREPARE FINANCIAL STATEMENTS; THEREFORE, NO FOOTNOTE IS AVAILABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>HISTORICAL BUILDINGS AND ARTIFACTS MAINTAINED FOR DISPLAY AND EDUCATION OF THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S ENDOWMENT FUNDS CONSIST OF FUNDS ESTABLISHED BY STEIBER WITH THE OREGON COMMUNITY FOUNDATION AND FUNDS ESTABLISHED BY THE RUSSEL E. PRATT TRUST, HELEN PEARCE TRUST, AND DOROTHY PEARCE TRUST. THE STEIBER AND HELEN PEARCE TRUST ENDOWMENTS ARE INTENDED TO BE USED FOR THE GENERAL PURPOSES OF THE ORGANIZATION. THE RUSSEL E. PRATT TRUST AND DOROTHY PEARCE TRUST ARE INTENDED TO BE USED FOR THE PURCHASE AND MAINTENANCE OF THE ORGANIZATION'S FACILITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleG documentId="RetDoc1041300001">
      <FundraisingEventInformationGrp>
        <Event1Nm>SPRING GALA</Event1Nm>
        <GrossReceiptsEvent1Amt>46095</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>33066</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>13029</GrossRevenueEvent1Amt>
        <FoodAndBeverageEvent1Amt>4490</FoodAndBeverageEvent1Amt>
        <EntertainmentEvent1Amt>1650</EntertainmentEvent1Amt>
        <OtherDirectExpensesEvent1Amt>12375</OtherDirectExpensesEvent1Amt>
        <GrossReceiptsTotalAmt>46095</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>33066</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>13029</GrossRevenueTotalEventsAmt>
        <FoodAndBeverageTotalEventsAmt>4490</FoodAndBeverageTotalEventsAmt>
        <EntertainmentTotalEventsAmt>1650</EntertainmentTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>12375</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>18515</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>-5486</NetIncomeSummaryAmt>
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    </IRS990ScheduleG>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE ARE INDIVIDUAL AND BUSINESS MEMBERSHIPS. THE MEMBERS ARE ENTITLED TO BASIC BENEFITS WHICH INCLUDE UNLIMITED MUSEUM ADMISSION, DISCOUNTS ON EVENTS AND STORE PURCHASES, AND RECEIPT OF NEWSLETTERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS ELECT THE BOARD OF DIRECTORS ANNUALLY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>SECTION 2.2.5 OF THE ARTICLES OF ORGANIZATION STATE BUSINESS AND AGENDA ITEMS WILL BE DISCUSSED AT THE ANNUAL MEETING. MEMBERS VOTE ON THESE ITEMS AT THE MEETING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD TREASURER REVIEWS THE 990 PRIOR TO FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION REVIEWS CONFLICT OF INTEREST POLICY WITH BOARD MEMBERS ANNUALLY AND UPON HIRE FOR NEW EMPLOYEES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S GOVERNING DOCUMENTS AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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