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      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 1, PART III, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MUSEUMS COLLECTIONS, WHICH ARE ACQUIRED THROUGH PURCHASES AND CONTRIBUTIONS SINCE JULY 17,1996, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENT OF FINANCIAL POSITION. PURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN NET ASSETS WITHOUT DONOR RESTRICTIONS IN THE YEAR IN WHICH THEITEMS ARE ACQUIRED. CONTRIBUTED COLLECTION ITEMS ARE NOT REFLECTED ON THE FINANCIAL STATEMENTS. PROCEEDS FROM DEACCESSIONS OR INSURANCE RECOVERIES ARE REFLECTED AS INCREASES IN THE APPROPRIATE NET ASSET CLASSES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 2, PART III, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SHORELINE HISTORICAL MUSEUM COLLECTS ARTIFACTS, DOCUMENTS, MEMORABILIA, AND PHOTOS RELATED TO ITS MISSION TO PRESERVE, RECORD, AND INTERPRET THE HISTORY OF NORTHWEST KING COUNTY, WHICH INCLUDES THE CITIES OF SHORELINE, LAKE FOREST PARK, AND NORTH SEATTLE. THESE COLLECTION ITEMS AID THE MUSEUM IN EXPLAINING THE HISTORY OF THE AREA THROUGH EXHIBITS, PUBLICATIONS, AND LECTURES, AND AID ACADEMICS AND THE GENERAL PUBLIC IN THE PURSUIT OF ANSWERS TO SCHOLARLY RESEARCH QUESTIONS. THE COLLECTIONS ARE PRESERVED FOR FUTURE GENERATIONS TO CONTINUE THE MUSEUM'S MISSION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION ACCOUNTS FOR TAX POSITIONS IN ACCORDANCE WITH THE FASB ACCOUNTING STANDARDS CODIFICATION TOPIC NO. 740, INCOME TAXES. WITH FEW EXCEPTIONS, THE ORGANIZATION IS SUBJECT TO FEDERAL AND STATE INCOME TAX EXAMINATIONS BY TAX AUTHORITIES FOR THE PRIOR THREE YEARS. MANAGEMENT HAS REVIEWED THE ORGANIZATIONS TAX POSITIONS AND DETERMINED THERE WERE NO UNCERTAIN TAX POSITIONS AS OF DECEMBER 31, 2023 AND 2022 THAT COULD RESULT IN UNRELATED BUSINESS TAXES TO THE ORGANIZATION OR LOSS OF ITS NON-PROFIT STATUS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FINANCE COMMITTEE REVIEWS THE FORM 990 PRIOR TO FILING. A COPY OF THE FORM 990 IS PRESENTED TO THE BOARD OF DIRECTORS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>SHM ADHERES TO THE CODE OF ETHICS AND CONFLICT OF INTEREST POLICY ESTABLISHED BY THE AMERICAN ALLIANCE FOR MUSEUMS (AAM). BOARD MEMBERS ARE INTERVIEWED FOR POTENTIAL CONFLICTS PRIOR TO ELECTION, AND INFORMED REGARDING MUSEUM (AAM) POLICY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>YEAR TO YEAR CONTRACT; RENEWED EACH YEAR AFER REVIEW BY AD HOC BOARD COMMITTEE WHERE LOCAL COMPARABLE MARKET DATA IS USE TO DETERMINE THE COMPENSATION LEVEL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE AT THE MUSEUM OFFICE.</ExplanationTxt>
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      <SupplementalInformationDetail>
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</Return>