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        <PersonNm>MARY CASLIN ROSS</PersonNm>
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        <CashGrantAmt>30000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>HAMILTON TICKETS</GrantTypeTxt>
        <RecipientCnt>2572</RecipientCnt>
        <CashGrantAmt>180040</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I - LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>on schedule i, part ii, The Institute gives grants to schools and organizations to run American historY programs and Saturday Academies of American history. Strong oversight is exercised by providing written grant letters outlining standardized procedures, policies and outcomes required. Other measures include site visits, progress and final reports from organization on performance, statistics and finance, and in some cases, documentation via actual receipts of funds spent. A program officer is assigned to each organization and communication is made throughout the grant period. THE INSTITUTE AWARDED $50,000 TO AN INDIVIDUAL for the george washington book prize. the individual requested to FUNDS PAID directly TO THE COMPANY IdENTIFIED IN PART II.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>part iii - line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>gilder lehrman institute received $1,461,000 IN SUPPORT OF AN INITIATIVE TO PROVIDE SUBSIDIZED TICKETS TO THE BROADWAY SHOW HAMILTON FOR UNDERPRIVILEGED HIGH SCHOOL STUDENTS FROM NEW YORK CITY PUBLIC SCHOOLS AND TO CREATE AND DISTRIBUTE ACCOMPANYING EDUCATIONAL MATERIALS THAT INTEGRATE THEATRICAL PERFORMANCE AND THE STUDY OF AMERICAN HISTORY. of the $1,461,000 provided, gilder lehrman institute subsidized $180,040 in fiscal year 2016 toward hamilton tickets.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ">
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Lesley S Herrmann</PersonNm>
        <TitleTxt>senior advisor</TitleTxt>
        <BaseCompensationFilingOrgAmt>247559</BaseCompensationFilingOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>25509</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>273068</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Timothy R Bailey</PersonNm>
        <TitleTxt>DIRECTOR OF EDUCATION</TitleTxt>
        <BaseCompensationFilingOrgAmt>145020</BaseCompensationFilingOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>26904</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>171924</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="IRS990ScheduleM">
      <WorksOfArtGrp />
      <ArtHistoricalTreasuresGrp />
      <ArtFractionalInterestGrp />
      <BooksAndPublicationsGrp />
      <ClothingAndHouseholdGoodsGrp />
      <CarsAndOtherVehiclesGrp />
      <BoatsAndPlanesGrp />
      <IntellectualPropertyGrp />
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>6</ContributionCnt>
        <NoncashContributionsRptF990Amt>57646</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <SecuritiesCloselyHeldStockGrp />
      <SecurPrtnrshpTrustIntrstsGrp />
      <SecuritiesMiscellaneousGrp />
      <QualifiedContribHistStructGrp />
      <QualifiedContribOtherGrp />
      <RealEstateResidentialGrp />
      <RealEstateCommercialGrp />
      <RealEstateOtherGrp />
      <CollectiblesGrp />
      <FoodInventoryGrp />
      <DrugsAndMedicalSuppliesGrp />
      <TaxidermyGrp />
      <HistoricalArtifactsGrp />
      <ScientificSpecimensGrp />
      <ArchaeologicalArtifactsGrp />
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>false</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>part I</FormAndLineReferenceDesc>
        <ExplanationTxt>The Institute has purchased and has received donations of documents of national historical significance. The documents are primarily maintained for public exhibition, education, and research in furtherance of public service, rather than for financial gain. In conformity with accounting policies generally followed by museums, the value of the historical documents has been excluded from the statement of financial position, and gifts of historical documents are excluded from revenue in the statement of activities. Purchases of historical documents are recorded as decreases in net assets in the statement of activities.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III - LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>Founded in 1994 by philanthropists Richard Gilder and Lewis E. Lehrman, the Gilder Lehrman Institute of American History (the institute") is the nations leading American history organization dedicated to K-12 education. The Institutes mission is to promote the knowledge and understanding of American history through educational programs and resources. At the Institutes core is the Gilder Lehrman Collection, one of the great archives in American history. Drawing the 65,000 documents in the Gilder Lehrman Collection and an extensive network of eminent historians, the Institute provides teachers, students, and the general public with direct access to unique primary source materials.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III - LINE 4D</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER PROGRAMS: NATIONAL HISTORY TEACHER OF THE YEAR AWARD, HISTORY SCHOLAR AWARDS, NATIONAL BOOK PRIZES, CONFERENCES OUTREACH AND SCHOLARLY FELLOWSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION A. - QUESTION 2</FormAndLineReferenceDesc>
        <ExplanationTxt>DR. JAMES G. BASKER (PRESIDENT AND TRUSTEE), IS A PAID CONSULTANT TO THE GILDER FOUNDATION, WHICH IS DIRECTED BY RICHARD GILDER (CO-CHAIR, E.V.P. &amp; TREASURER), AND WHICH DONATEs ANNUALLY TO THE GILDER LEHRMAN INSTITUTE. RICHARD GILDER ENGAGED IN A BUSINESS TRANSACTION WITH LEWIS LEHRMAN. Richard Gilder and Shaiza Rizavi engaged in a business transaction. THE Institute maintains an account at Gilder Gagnon Howe &amp; Co LLC (GGH). Richard Gilder and Shaiza Rizavi, trustees of THE INSTITUTE, are members of GGH.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B. - QUESTION 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>DR. JAMES G. BASKER (PRESIDENT and trustee), AND CHRISTINE KANG (CHIEF OPERATING OFFICER) REVIEWED THE FORM 990 BEFORE IT WAS FILED. A COPY WAS FURNISHED TO ALL MEMBERS OF THE BOARD OF TRUSTEES PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B. - QUESTION 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>the CONFLICT OF INTEREST POLICy is supplied to all trustees and completed on an annual basis.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B. - QUESTION 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>SENIOR ADVISOR COMPENSATION IS REVIEWED USING COMPARABILITY DATA BY AT LEAST ONE MEMBER OF THE BOARD OF TRUSTEES. In addition, when hiring THE CHIEF OPERATING OFFICER, THE Institute used a recruiting firm, who provided competitive salary research to like-organizations prior to determination of CHIEF OPERATING OFFICER'S salary. PART VI, SECTION B. - QUESTION 15B THE SENIOR ADVISOR AND CHIEF OPERATING OFFICER'S COMPENSATION IS REVIEWeD USING COMPARABILITY DATA BY AT LEAST ONE MEMBER OF THE BOARD OF TRUSTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION C. - QUESTION 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE INSTITUTE'S AUDITED FINANCIAL STATEMENTS ARE AVAILABLE ON ITS WEBSITE. THE GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY WILL BE made AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>