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      <Desc>AS THE NATIONS' FIRST HISTORICAL SOCIETY, THE MASSACHUSETTS HISTORICAL SOCIETY (MHS) STRIVES TO ENHANCE THE UNDERSTANDING OF OUR NATION'S PAST AND ITS CONNECTION TO THE PRESENT, DEMONSTRATING THAT HISTORY IS NOT JUST A SERIES OF EVENTS THAT HAPPENED TO INDIVIDUALS LONG AGO BUT IS INTEGRAL TO THE FABRIC OF OUR DAILY LIVES. ITS COLLECTIONS ARE ACCESSIBLE TO ANYONE WITH AN INTEREST IN AMERICAN HISTORY. BEYOND RESEARCH, THE MHS OFFERS MANY WAYS FOR THE PUBLIC TO ENJOY ITS COLLECTIONS INCLUDING ENGAGING PROGRAMS, THOUGHT-PROVOKING EXHIBITIONS, PUBLICATIONS, SEMINARS, AND TEACHER WORKSHOPS.PLEASE SEE SCH. O FOR ADDITIONAL PROGRAM HIGHLIGHTS &amp; DESCRIPTIONS.COLLECTIONS - THE SOCIETY'S EXTRAORDINARY COLLECTIONS TELL THE STORY OF AMERICA THROUGH MILLIONS OF RARE AND UNIQUE DOCUMENTS, ARTIFACTS, AND NATIONAL TREASURES, INCLUDING THE PERSONAL PAPERS OF THREE PRESIDENTS JOHN ADAMS, JOHN QUINCY ADAMS, AND THOMAS JEFFERSON. THROUGH ITS RESEARCH LIBRARY, ONLINE RESOURCES, PUBLICATIONS, EXHIBITIONS, AND PROGRAMS, THE MHS MAKES ITS HOLDINGS ACCESSIBLE TO ANYONE WITH AN INTEREST IN THE PEOPLE AND EVENTS THAT SHAPED OUR COUNTRY. PAUL REVERE'S HANDWRITTEN ACCOUNT OF HIS FAMOUS RIDE, THOMAS JEFFERSON'S AND JOHN ADAM'S MANUSCRIPT COPIES OF THE DECLARATION OF INDEPENDENCE AND ELBRIDGE GERRY'S ANNOTATED COPY OF THE CONSTITUTION ARE AMONG THE MANY ICONIC AMERICAN DOCUMENTS OF THE MHS. SPANNING FOUR CENTURIES, THE LETTERS, DIARIES, AND OTHER PERSONAL PAPERS OF INDIVIDUALS AND FAMILIES, AS WELL AS THEIR BOOKS, PHOTOGRAPHS, MAPS, NEWSPAPERS, ARTIFACTS, AND WORKS OF ART HAVE BECOME ESSENTIAL PRIMARY SOURCES FOR THE STUDY AND UNDERSTANDING OF AMERICAN HISTORY. THE LIBRARY IS FREE AND OPEN TO RESEARCHERS OF ALL AGES AND LEVELS OF INTEREST. THE LIBRARY DOES NOT LEND MATERIALS, BUT ANY PERSON INTERESTED IN USING THE COLLECTION CAN REGISTER AS A RESEARCHER AND USE MATERIALS IN THE LIBRARY. IN MANY CASES, SELECTED MATERIALS CAN BE REPRODUCED AND SENT TO INDIVIDUALS WHO CANNOT VISIT THE LIBRARY IN PERSON.EXHIBITIONS - THE SOCIETY'S EXHIBITIONS CELEBRATE THE PERSPECTIVE AMERICAN HISTORY BRINGS TO OUR OWN TIME AND ILLUSTRATE HOW IT SUSTAINS OUR REPUBLIC AND GUIDES OUR FUTURE. AS A MAJOR HISTORY PRESENTATION VENUE FOR THE REGION, THE MHS PRODUCES EXHIBITIONS THAT ARE THEMATIC, TELL STORIES, AND EXPLORE HOW TURNING POINTS IN THE PAST ARE REFLECTED IN CULTURE TODAY. THROUGHOUT FISCAL YEAR 2024, VISITORS TO OUR BUILDING WERE ABLE TO ENJOY TWO EXHIBITIONS. IN COMMEMORATION OF THE 250TH ANNIVERSARY OF THE BOSTON TEA PARTY, THE MHS DISPLAYED THE EXHIBITION "THE DYE IS CAST": INTERESTS &amp; IDEALS THAT MOTIVATED THE BOSTON TEA PARTY FROM OCTOBER 5, 2023, TO FEBRUARY 29, 2024. THIS EXHIBITION DELVED INTO A PIVOTAL MOMENT IN AMERICAN HISTORYTHE BOSTON TEA PARTYTHROUGH THE PERSPECTIVES OF SIX INDIVIDUALS AND FEATURED A REMARKABLE COLLECTION OF ARTIFACTS AND DOCUMENTS FROM THE MHS COLLECTION. MORE THAN 700 PEOPLE VISITED THE MHS JUST TO SEE THE EXHIBITION AS WELL AS MANY MORE WHO VIEWED IT AS PART OF OTHER PROGRAMMING.BOSTON VIEWS: THROUGH THE LENS OF ARTHUR A. SHURCLIFF WAS ON DISPLAY FROM MAY 6, 2024, TO FEBRUARY 28, 2025. ARTHUR ASAHEL SHURCLIFF (18701957), A LANDSCAPE ARCHITECT, CREATED A COLLECTION OF 1,295 GLASS LANTERN SLIDES THAT DEPICT CITYSCAPES AND BUILDINGS IN BOSTON DURING THE FIRST DECADES OF THE 20TH CENTURY, AND MUCH MORE. IN ADDITION TO VIEWS OF BOSTON REPRODUCED IN THE EXHIBITION, THE MHS DISPLAYED SLIDES OF HISTORICAL MAPS AND PAINTINGS, PLANS AND DRAWINGS CREATED BY SHURCLIFF TO ILLUSTRATE URBAN GROWTH AND LAND USE, AND EARLY AERIAL PHOTOGRAPHS OF BOSTON AND OTHER CITIES. THROUGHOUT THE RUN OF THE SHOW, THE MHS WELCOMED MORE THAN 1,310 EXHIBITION VISITORS ALONG WITH THOSE WHO VIEWED IT AS PART OF OTHER PROGRAMMING. EDUCATION AND PUBLIC PROGRAMS - CONTINUING TO DEVELOP A VIBRANT SELECTION OF PUBLIC AND EDUCATIONAL PROGRAMS ENABLES THE MHS TO HELP ENHANCE THE UNDERSTANDING OF OUR NATION'S PAST AND ITS CONNECTION TO THE PRESENT. FISCAL YEAR 2024 WAS THE FIRST YEAR OF A THREE-YEAR STRATEGIC PLAN FOR THE MHS. EDUCATION AND PROGRAMMING FEATURE PROMINENTLY IN THIS PLAN. EDUCATION GOALS INCLUDE PROMOTING THE TEACHING OF HISTORY AND CIVICS ACROSS THE K-12 STUDENT POPULATION IN MASSACHUSETTS; REACHING MORE STUDENTS FOR NATIONAL HISTORY DAY (NHD); PROVIDING MORE ACCESS TO THE SOCIETY'S PRIMARY SOURCE MATERIALS BY EXPANDING THE TOOLS AND RESOURCES SUCH AS THE HISTORY SOURCE; AND ACTIVELY SEEK PARTNERS WHO WILL ALLOW US TO LEVERAGE OUR EDUCATION EFFORTS.THE HISTORY SOURCE, A FREE ONLINE RESOURCE HOSTED BY THE MHS, CONTINUES TO GROW. FIVE NEW SOURCE SETS WERE RELEASED IN FISCAL YEAR 2024. OUR EDUCATION TEAM OFFERED 14 TEACHER TRAINING SESSIONS THROUGHOUT THE YEAR SERVING MORE THAN 100 EDUCATORS. THERE WERE SEVEN STUDENT PROGRAMS SERVING 149 STUDENTS NOT INCLUDING THE NATIONAL HISTORY DAY (NHD) CONTESTS. STUDENT PARTICIPATION IN NHD IN MASSACHUSETTS GREW BY 25% IN FISCAL YEAR 2024. A TOTAL OF 2,758 STUDENTS PARTICIPATED IN THE PROGRAM WITH 533 STUDENTS AT THREE REGIONAL CONTESTS AND 300 STUDENTS AT THE STATE CONTEST. THE MHS PILOTED A SUCCESSFUL INTRODUCTION TO NHD COURSE, WHICH LED TO TWO NEW SCHOOLS ADOPTING NHD.THE MHS PROGRAMMING STRATEGY INCLUDES PROVIDING INNOVATIVE AND UNIQUE EXPERIENCES THAT HIGHLIGHT THE SOCIETY'S COLLECTION AND HISTORICAL EXPERTISE TO REACH NEW AUDIENCES AND RETAIN EXISTING CONSTITUENCIES. IT ALSO INVOLVES MORE OUTREACH TO DIFFERENT COMMUNITIES TO BROADEN CONNECTIONS. IN FISCAL YEAR 2024, PROGRAMMING DESIGNED FOR BOTH GENERAL AND SCHOLARLY AUDIENCES ATTRACTED MORE THAN 7,240 ATTENDEES AT PROGRAMS, SEMINAR SESSIONS, AND SPECIAL EVENTS OVER THE COURSE OF THE YEAR. A WIDE RANGE OF PROGRAMS WERE OFFERED IN FISCAL YEAR 2024 INCLUDING CARIBBEAN AMERICANS &amp; POLITICS: CELEBRATING 50 YEARS OF THE CARIBBEAN AMERICAN CARNIVAL OF BOSTON; WRITING HISTORY WITH CELEBRATED NPR HOST AND AUTHOR STEVE INSKEEP, IN PARTNERSHIP WITH IN PARTNERSHIP WITH AMERICAN ANCESTORS/NEHGS, GBH FORUM NETWORK, AND PORTER SQUARE BOOKS; NECESSARY TROUBLE: A CONVERSATION WITH DREW FAUST; WHEATLEY IN THE 21ST CENTURY: A READING AND BOOK LAUNCH; ITALIAN INFLUENCE ON BOSTON'S CULTURE, ECONOMY, AND POLITICS WITH LAWRENCE DICARA AND JAMES PASTO; CHASING BEAUTY: THE LIFE OF ISABELLA STEWART GARDNER WITH NATALIE DYKSTRA; AND DEMOCRACY AWAKENING, A CONVERSATION WITH HEATHER COX RICHARDSON.RESEARCH - THE SOCIETY STRIVES TO FOSTER A RESEARCH COMMUNITY THAT ACTIVELY PROMOTES THE STUDY OF THE HISTORY OF MASSACHUSETTS AND THE NATION. WE OFFER AN EXCEPTIONAL RANGE OF RESOURCES FOR MAKING AND SHARING HISTORICAL DISCOVERIES INCLUDING PUBLIC TALKS, TOURS, EXHIBITIONS, SCHOLARLY SEMINARS, CONFERENCES, AND ACCESS TO OUR COLLECTIONS THROUGH OUR WEBSITE AND LIBRARY. WE AWARDED 63 FELLOWSHIPS IN FISCAL YEAR 2024 INCLUDING MHS-NEH LONG-TERM, MHS SHORT-TERM, NERFC, TEACHER, AND STUDENT FELLOWSHIPS. EACH YEAR, THE MHS WELCOMES A WIDE VARIETY OF RESEARCHERS FROM ACROSS THE COUNTRY AND AROUND THE WORLD FROM HIGH SCHOOL STUDENTS AND FAMILY HISTORIANS TO PROFESSORS AND PULITZER PRIZE-WINNING AUTHORS. THESE RESEARCHERS NETWORK, SHARE THEIR FINDINGS, AND EXCHANGE IDEAS. IN FISCAL YEAR 2024, THERE WERE 2,055 RESEARCH VISITS FROM 645 INDIVIDUAL RESEARCHERS FROM 34 STATES AND 18 COUNTRIES OUTSIDE OF THE US. IN FISCAL YEAR 2024, WE PILOTED AN EARLY CAREER SCHOLARS COMMITTEE AND MENTORSHIP PROGRAM. ONE WAY TO INTRODUCE SCHOLARS TO CAREER PATHS BEYOND THE CLASSROOM, THIS PROGRAM IS PART OF OUR STRATEGIC GOAL TO USE OUR NETWORKS TO PROVIDE PATHS TO PUBLIC HISTORY. MORE ROBUST ENGAGEMENT AT SEMINARS IS ONE WAY WE MEASURED SUCCESS OF THE PILOT. TO CONTINUE TO PROMOTE OUR RESEARCH PROGRAMS AND FELLOWSHIPS, IN FISCAL YEAR 2025 WE PLAN TO CONTINUE THE EARLY CAREER SCHOLARS COMMITTEE AND MENTORSHIP PROGRAM AND WILL LAUNCH A PODCAST TO PROMOTE MHS RESEARCHERS AND FELLOWS. PUBLICATION AND DOCUMENTARY EDITING INCLUDING THE ADAMS PAPERS -THE MHS BEGAN PUBLISHING BOOKS IN 1792 AND IS ONE OF THE OLDEST, CONTINUOUSLY OPERATING PUBLISHERS IN THE UNITED STATES, AND MAKES AVAILABLE PRINTED BOOKS, ELECTRONIC PUBLICATIONS, A NEWSLETTER, AND SCHOLARLY JOURNAL. THE MHS PUBLISHES PRINT AND ELECTRONIC WORKS THAT PROVIDE INFORMATION ABOUT AND MAKE AVAILABLE THE CONTENT OF SOME OF ITS MOST SIGNIFICANT COLLECTIONS AND THE PEOPLE WHO CREATED THEM.</Desc>
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        <TitleTxt>DIRECTOR OF DEVELOPMENT</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>43443</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PETER DRUMMEY</PersonNm>
        <TitleTxt>CHIEF HISTORIAN &amp; LIBRARIAN</TitleTxt>
        <AverageHoursPerWeekRt>35.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KANISORN WONGSRICHANALAI</PersonNm>
        <TitleTxt>DIRECTOR OF RESEARCH</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>124847</ReportableCompFromOrgAmt>
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        <OtherCompensationAmt>17320</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SARA MARTIN</PersonNm>
        <TitleTxt>EDITOR IN CHIEF</TitleTxt>
        <AverageHoursPerWeekRt>35.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CAROL W KNAUFF</PersonNm>
        <TitleTxt>VP FO PROGRAMS &amp; EXTERNAL AFFAIRS</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>MELINDA BARBER</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ELIZABETH A CHANG</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>MICHAEL A EWALD</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ANNETTE GORDON-REED</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>SUSAN W HUNNEWELL</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>G NATHANIEL JEPPSON</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>RENE JONES</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ROBERT KWAK</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ANTHONY H LENESS</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ANNE CRAIGE MCNAY</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>JOHN O'LEARY</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ROBERT G RIPLEY JR</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>PAUL W SANDMAN</BusinessNameLine1Txt>
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        <TitleTxt>TRUSTEE</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>CATHERINE BABSON JR</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>JAMES SEGEL</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>JUDITH BRYANT WITTENBERG</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>GREGORY GROOVER</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>RICHARD PIERSON</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>HILLARY RAYPORT</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ANDREW SERWER</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>CHRISTOPHER TOOMEY</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>ALEXANDER WHITTEMORE</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>NEWCOMB STILLWELL</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>BENJAMIN C ADAMS</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>OLIVER F AMES</PersonNm>
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        <OfficerInd>X</OfficerInd>
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      <Form990PartVIISectionAGrp>
        <PersonNm>EDWARD BALDINI</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>LEVIN H CAMPBELL JR</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>G MARSHALL MORIARTY</PersonNm>
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      <ContractorCompensationGrp>
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          <BusinessName>
            <BusinessNameLine1Txt>COMTEC SOLUTIONS LLC</BusinessNameLine1Txt>
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            <CityNm>ROCHESTER</CityNm>
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            <ZIPCd>14624</ZIPCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
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            <AddressLine1Txt>19 HAWTHORNE AVENUE</AddressLine1Txt>
            <CityNm>NEWTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02466</ZIPCd>
          </USAddress>
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        <BusinessCd>611600</BusinessCd>
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      <ProgramServiceRevenueGrp>
        <Desc>READING ROOM REVENUE</Desc>
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      <ProgramServiceRevenueGrp>
        <Desc>SALE OF PUBLICATIONS</Desc>
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        <RelatedOrExemptFuncIncomeAmt>4189</RelatedOrExemptFuncIncomeAmt>
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      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>167319</TotalRevenueColumnAmt>
        <ExclusionAmt>167319</ExclusionAmt>
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      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>32741</TotalRevenueColumnAmt>
        <ExclusionAmt>32741</ExclusionAmt>
      </RoyaltiesRevenueGrp>
      <GrossRentsGrp>
        <RealAmt>6668</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>8074</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>-1406</RealAmt>
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      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>-1406</TotalRevenueColumnAmt>
        <ExclusionAmt>-1406</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>6681043</SecuritiesAmt>
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      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>3400952</SecuritiesAmt>
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      <GainOrLossGrp>
        <SecuritiesAmt>3280091</SecuritiesAmt>
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        <TotalRevenueColumnAmt>3280091</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>510274</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2769817</ExclusionAmt>
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      <ContriRptFundraisingEventAmt>393614</ContriRptFundraisingEventAmt>
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        <TotalRevenueColumnAmt>-128388</TotalRevenueColumnAmt>
        <ExclusionAmt>-128388</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>OTHER INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>37240</ExclusionAmt>
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      <OtherRevenueTotalAmt>37240</OtherRevenueTotalAmt>
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        <UnrelatedBusinessRevenueAmt>510274</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2877323</ExclusionAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>148063</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>346259</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>32498</ManagementAndGeneralAmt>
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        <FundraisingAmt>11691</FundraisingAmt>
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        <FundraisingAmt>51655</FundraisingAmt>
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      <TravelGrp>
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      <ConferencesMeetingsGrp>
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        <ManagementAndGeneralAmt>30169</ManagementAndGeneralAmt>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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      <CollUsedScholarlyRsrchInd>X</CollUsedScholarlyRsrchInd>
      <CollectionUsedPreservationInd>X</CollectionUsedPreservationInd>
      <CollUsedLoanOrExchProgInd>X</CollUsedLoanOrExchProgInd>
      <SolicitedAssetsSaleInd>0</SolicitedAssetsSaleInd>
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        <InvestmentEarningsOrLossesAmt>14652851</InvestmentEarningsOrLossesAmt>
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        <AdministrativeExpensesAmt>66016</AdministrativeExpensesAmt>
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        <AdministrativeExpensesAmt>113921</AdministrativeExpensesAmt>
        <EndYearBalanceAmt>127469734</EndYearBalanceAmt>
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        <BookValueAmt>23184</BookValueAmt>
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      <OtherLiabilitiesOrgGrp>
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        <Amt>201754</Amt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <OtherRevenueAmt>-66016</OtherRevenueAmt>
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      <OtherRevenuesNotIncludedAmt>-167506</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>966623</RevenueNotReportedFinclStmtAmt>
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      <OtherExpensesIncludedAmt>167506</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>167506</ExpensesNotReportedAmt>
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      <OtherExpensesNotIncludedAmt>66016</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>1200145</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 1A:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COLLECTIONS, WHICH WERE ACQUIRED THROUGH PURCHASES AND CONTRIBUTIONS SINCE THE SOCIETY'S INCEPTION, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENTS OF FINANCIAL POSITION. PURCHASE OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN NET ASSETS WITHOUT DONOR RESTRICTIONS IF PURCHASED WITH NET ASSETS WITHOUT DONOR RESTRICTIONS AND AS DECREASES IN NET ASSETS WITH DONOR RESTRICTIONS IF PURCHASED WITH DONOR-RESTRICTED ASSETS. CONTRIBUTIONS OF COLLECTION ITEMS ARE NOT RECOGNIZED IN THE STATEMENT OF ACTIVITIES OR AS ASSETS. PROCEEDS FROM DEACCESSIONS ARE REFLECTED IN THE STATEMENT OF ACTIVITIES BASED ON ABSENCE OR EXISTENCE AND NATURE OF DONOR-IMPOSED RESTRICTIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY'S COLLECTIONS ARE MADE UP OF MANUSCRIPTS, RARE BOOKS, PAMPHLETS, REFERENCE WORKS, ART OBJECTS, AND OTHER ARTIFACTS OF HISTORICAL SIGNIFICANCE THAT ARE HELD FOR EDUCATIONAL, RESEARCH, HISTORIC, AND CURATORIAL PURPOSES. EACH OF THESE ITEMS IS CATALOGED, PRESERVED, AND CARED FOR, AND ACTIVITIES VERIFYING THEIR EXISTENCE AND ASSESSING THEIR CONDITION ARE PERFORMED CONTINUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY CLASSIFIES AS NET ASSETS WITH DONOR RESTRICTIONS (A) THE ORIGINAL VALUE OF GIFTS DONATED TO THE PERMANENT ENDOWMENT, (B) THE ORIGINAL VALUE OF SUBSEQUENT GIFTS TO THE PERMANENT ENDOWMENT, AND (C) ACCUMULATIONS TO THE PERMANENT ENDOWMENT MADE IN ACCORDANCE WITH THE DIRECTION OF THE APPLICABLE DONOR'S GIFT INSTRUCTIONS AT THE TIME THE ACCUMULATION IS MADE TO THE FUND. THE SOCIETY HAS A POLICY OF APPROPRIATING FOR DISTRIBUTION EACH YEAR A PERCENTAGE OF INVESTED ASSETS COMPUTED ON A TRAILING 12-QUARTER QUARTERLY AVERAGE OF ITS ENDOWMENT ASSET MARKET VALUES. IN ESTABLISHING THIS POLICY, THE SOCIETY CONSIDERED THE LONG-TERM EXPECTED RETURNS ON ITS ENDOWMENT ASSETS. ACCORDINGLY, OVER THE LONG-TERM, THE SOCIETY EXPECTS THE SPENDING POLICY TO ALLOW ITS ENDOWMENT TO GROW AT A RATE IN EXCESS OF INFLATION. THIS IS CONSISTENT WITH THE SOCIETY'S OBJECTIVE TO MAINTAIN THE PURCHASING POWER OF THE ENDOWMENT ASSETS. THE CUMULATIVE NET UNSPENT APPRECIATION ON INVESTMENTS WITH DONOR RESTRICTIONS IS ACCOUNTED FOR AS NET ASSETS WITH DONOR RESTRICTIONS AND TOGETHER WITH UNSPENT APPRECIATION ON UNRESTRICTED ENDOWMENT FUNDS IS NOT AVAILABLE FOR DISTRIBUTION, EXCEPT BY THE EXPRESS APPROPRIATION ACTION OF THE BOARD OF TRUSTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY IS EXEMPT FROM FEDERAL INCOME TAX UNDER SECTION 501(C )(3) OF THE INTERNAL REVENUE CODE. THE SOCIETY IS ALSO EXEMPT FROM MASSACHUSETTS INCOME TAXES. HOWEVER, INCOME FROM CERTAIN ACTIVITIES NOT DIRECTLY RELATED TO THE SOCIETY'S TAX-EXEMPT PURPOSE MAY BE SUBJECT TO TAXATION AS UNRELATED BUSINESS INCOME AT BOTH THE STATE AND FEDERAL LEVELS. IN ADDITION, THE SOCIETY QUALIFIES FOR THE CHARITABLE CONTRIBUTION DEDUCTION UNDER SECTION 170(B)(1)(A) AND HAD BEEN CLASSIFIED AS AN ORGANIZATION OTHER THAN PRIVATE FOUNDATION UNDER SECTION 509(A)(2). THE SOCIETY EVALUATES ALL SIGNIFICANT TAX POSITIONS. AS OF JUNE 30, 2024, THE SOCIETY DOES NOT BELIEVE THAT IT HAS TAKEN ANY TAX POSITIONS THAT WOULD REQUIRE THE RECORDING OF ANY ADDITIONAL TAX LIABILITY NOR DOES IT BELIEVE THAT THERE ARE ANY UNREALIZED TAX BENEFITS THAT WOULD EITHER INCREASE OR DECREASE WITHIN THE NEXT 12 MONTHS. THE SOCIETY'S INCOME TAX RETURNS ARE SUBJECT TO EXAMINATION BY THE APPROPRIATE TAXING JURISDICTIONS; HOWEVER, THERE ARE NO EXAMINATIONS IN PROCESS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>PART I, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION PROVIDES A SOCIAL CLUB MEMBERSHIP FOR CATHERINE ALLGOR, PRESIDENT. THE AMOUNT WAS PAID PURSUANT TO THE TERMS OUTLINED IN HER ORIGINAL OFFER OF EMPLOYMENT.</ExplanationTxt>
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        <ExplanationTxt>THE BOARD CHAIR AND TREASURER, IN CONSULTATION WITH OFFICERS APPROVE THE PRESIDENT'S COMPENSATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>AS PART OF ITS MISSION, THE MHS MAINTAINS ITS OWN PUBLISHING PROGRAM AND HOSTS THE OFFICES OF THE ADAMS PAPERS EDITORIAL PROJECT. FOUNDED IN 1954, THE PROJECT PREPARES A COMPREHENSIVE EDITION, IN PRINT AND DIGITAL FORMATS, OF THE MANUSCRIPTS WRITTEN AND RECEIVED BY THREE GENERATION OF THE ADAMS FAMILY OF BRAINTREE AND QUINCY, MASSACHUSETTS. THE ADAMS FAMILY PAPERS MANUSCRIPT COLLECTION AT THE MHS FORMS THE NUCLEUS OF THE PROJECT, ALTHOUGH THE EDITORS HAVE GATHERED MORE THAN 30,000 COPIES OF ADDITIONAL ADAMS WRITINGS FROM HUNDREDS OF LIBRARIES, INSTITUTIONS, AND INDIVIDUALS IN THE UNITED STATES AND ABROAD. TO DATE, NEARLY 60 PRINT VOLUMES HAVE BEEN PUBLISHED BY HARVARD UNIVERSITY PRESS, MOST OF WHICH ARE AVAILABLE ONLINE AS PART OF THE ADAMS PAPERS DIGITAL EDITION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING THE YEAR THE BOARD ENGAGED WITH WINTER STREET CFO, LLC TO PERFORM THE CFO WORK. WINTER STREET IS OVERSEEN BY THE PRESIDENT AND THE BOARD OF DIRECTORS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS ELECTED MEMBERS, KNOWN AS FELLOWS, AS WELL AS GENERAL MEMBERSHIP, WHICH DO NOT HAVE VOTING RIGHTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS ELECTED MEMBERS WHO DO NOT HAVE VOTING RIGHTS. IN ADDITION, THE SOCIETY IS GOVERNED BY THE BOARD OF TRUSTEES WHO ARE NOMINATED AND ELECTED. THE BOARD OF TRUSTEES ARE RESPONSIBLE FOR ALMOST ALL GOVERNANCE DECISIONS.</ExplanationTxt>
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        <ExplanationTxt>THE SOCIETY'S ANNUAL AUDITED FINANCIAL STATEMENTS, FORM 990 AND MASSACHUSETTS FORM PC ARE AVAILABLE TO THE PUBLIC ON ITS WEBSITE AT MASSHIST.ORG. THESE DOCUMENTS ARE ALSO AVAILABLE ON THE MASSACHUSETTS ATTORNEY GENERAL'S WEBSITE AT WWW.CHARITIES.AGO.STATE.MA.US/CHARITIES/. THE SOCIETY'S BYLAWS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE ON THE SOCIETY'S WEBSITE. THE SOCIETY WILL MAKE PRINTED COPIES AVAILABLE UPON WRITTEN REQUEST.</ExplanationTxt>
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