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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II, SECTION B, LINE 13:</FormAndLineReferenceDesc>
        <ExplanationTxt>BSF WAS INCORPORATED ON 2/6/2015. THUS, THIS 2018 TAX FILING IS FOR BSF'S FIFTH TAX YEAR AS A SECTION 501(C)(3) ORGANIZATION.</ExplanationTxt>
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          <AddressLine2>RESTRICTED</AddressLine2>
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      <TotalRevenuePerForm990Amt>3765124</TotalRevenuePerForm990Amt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>BSF ACCOUNTS FOR UNCERTAINTY IN INCOME TAXES IN ACCORDANCE WITH ASC TOPIC, INCOME TAXES. THIS STANDARD CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS AND PRESCRIBES A RECOGNITION THRESHOLD AND MEASUREMENT ATTRIBUTE FOR THE FINANCIAL STATEMENTS REGARDING A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN. BSF HAS DETERMINED THAT THERE ARE NO UNCERTAIN TAX POSITIONS WHICH QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS AT JUNE 30, 2019.</ExplanationTxt>
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          <AddressLine1Txt>2300 WASHINGTON STREET</AddressLine1Txt>
          <CityNm>ROXBURY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02119</ZIPCd>
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        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>530209</CashGrantAmt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>BOSTON EDUCATIONAL DEVELOPMENT FUND (VARIOUS SCHOOLS)</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>7 PALMER ST SUITE 2</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02119</ZIPCd>
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        <RecipientEIN>222514422</RecipientEIN>
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        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>FRIENDS OF THE PERRY</BusinessNameLine1Txt>
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        <USAddress>
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          <CityNm>SOUTH BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02127</ZIPCd>
        </USAddress>
        <RecipientEIN>823025265</RecipientEIN>
        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>52963</CashGrantAmt>
        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>NEIGHBORHOOD HOUSE FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>21 QUEEN STREET</AddressLine1Txt>
          <CityNm>DORCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02122</ZIPCd>
        </USAddress>
        <RecipientEIN>043462888</RecipientEIN>
        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>92197</CashGrantAmt>
        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>KIPP MASS INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>90 HIGH ROCK ST</AddressLine1Txt>
          <CityNm>LYNN</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01902</ZIPCd>
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        <RecipientEIN>464881350</RecipientEIN>
        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>60000</CashGrantAmt>
        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>ACADEMY OF THE PACIFIC RIM CHARTER SCHOOL FUNDRAISING INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1 WESTINGHOUSE PLAZA</AddressLine1Txt>
          <CityNm>HYDE PARK</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02136</ZIPCd>
        </USAddress>
        <RecipientEIN>043286025</RecipientEIN>
        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>178376</CashGrantAmt>
        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>PREPARATORY FOUNDATION INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1286 HYDE PARK AVE</AddressLine1Txt>
          <CityNm>HYDE PARK</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02136</ZIPCd>
        </USAddress>
        <RecipientEIN>113690799</RecipientEIN>
        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>100000</CashGrantAmt>
        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MISSION GRAMMAR SCHOOL</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>94 ST ALPHONSUS STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02120</ZIPCd>
        </USAddress>
        <RecipientEIN>042106175</RecipientEIN>
        <IRCSectionDesc>501C3</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <PurposeOfGrantTxt>TO SUPPORT EXPANSION AND SCHOOL IMPROVEMENT</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>THE COMMONWEALTH OF MA TRUST FUND FOR EDUCATION INITIATIVES</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>75 PLEASANT ST</AddressLine1Txt>
          <CityNm>MALDEN</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02148</ZIPCd>
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        <PurposeOfGrantTxt>EVENT SPONSORSHIP</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>NORTHEASTERN UNIVERSITY</BusinessNameLine1Txt>
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          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02115</ZIPCd>
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        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>CHANGE RESEARCH PUBLIC BENEFIT CORPORATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1510 WALNUT STREET SUITE E</AddressLine1Txt>
          <CityNm>BERKELEY</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94709</ZIPCd>
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        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>IMPACT FOR EDUCATION</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>44 HOWARD AVENUE</AddressLine1Txt>
          <CityNm>NEW HAVEN</CityNm>
          <StateAbbreviationCd>CT</StateAbbreviationCd>
          <ZIPCd>06519</ZIPCd>
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        <RecipientEIN>461819840</RecipientEIN>
        <CashGrantAmt>27500</CashGrantAmt>
        <PurposeOfGrantTxt>PLANNING</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>WILDER STRATEGIES</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>20 PARK PLAZA SUITE 447</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02116</ZIPCd>
        </USAddress>
        <RecipientEIN>823837506</RecipientEIN>
        <CashGrantAmt>5000</CashGrantAmt>
        <PurposeOfGrantTxt>COMMUNICATION SUPPORT</PurposeOfGrantTxt>
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      <Total501c3OrgCnt>10</Total501c3OrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>BSF'S PROCEDURES FOR MONITORING THE USE OF GRANT FUNDS INCLUDE REQUIRING GRANTEES TO SUBMIT REPORTS TO BSF OUTLINING VARIOUS PIECES OF INFORMATION INCLUDING HOW GRANT FUNDS WERE USED, THE GRANTEE'S PROGRESS TOWARDS REACHING THE GRANT'S GOALS, AND ACHIEVEMENTS THE GRANTEE HAS ATTAINED DUE TO THE GRANT INVESTMENT MADE BY BSF. BSF MAINTAINS RECORDS TO SUBSTANTIATE THE SELECTION CRITERIA, AMOUNT OF PROCEEDS AND GRANTEES' ELIGIBILITY FOR THE GRANT INVESTMENTS MADE BY BSF. THESE RECORDS OUTLINE BSF'S DUE DILIGENCE PROCESS WHICH IS CONDUCTED WHEN EXPLORING POTENTIAL GRANTEES. BSF'S DUE DILIGENCE PROCESS INCLUDES AN ASSESSMENT AROUND THE POTENTIAL GRANTEE'S ROLE IN SERVING A KEY NEED FOR BOSTON'S FAMILIES, POTENTIAL TO ACHIEVE STRONG RESULTS, ABILITY TO GROW EFFECTIVELY, FINANCIAL SUSTAINABILITY AND BSF'S CAPACITY TO SUPPORT THE POTENTIAL GRANTEE. BSF GATHERS THE INFORMATION NECESSARY TO CONDUCT THE AFOREMENTIONED ASSESSMENT THROUGH FAMILY AND STAFF INTERVIEWS, SCHOOL VISITS, AND DATA REVIEW.</ExplanationTxt>
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    </IRS990ScheduleI>
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
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        <PersonNm>WILLIAM AUSTIN</PersonNm>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>202963</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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        <FormAndLineReferenceDesc>PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION FOR BSF'S FOUNDER AND CHIEF EXECUTIVE OFFICER, AS WELL AS OTHER OFFICERS AND KEY EMPLOYEES IS REVIEWED AND APPROVED BY THE BOARD OF DIRECTORS. THE REVIEW PROCESS CONDUCTED BY THE BOARD OF DIRECTORS IS BASED ON AN ANALYSIS OF COMPARABLE MARKET DATA WHICH CONSIDERS, AMONG OTHER CRITERIA, THE ROLES AND RESPONSIBILITIES OF THE POSITIONS BEING ASSESSED.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE FORM 990 IS DISTRIBUTED TO THE BOARD OF DIRECTORS FOR REVIEW AND APPROVAL. ONCE THE BOARD OF DIRECTORS HAS COMPLETED ITS REVIEW AND ULTIMATELY HAS APPROVED THE FORM 990, THE RETURN IS FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ON AN ANNUAL BASIS, THE MEMBERS OF THE BOARD OF DIRECTORS ARE REQUIRED TO COMPLETE A CONFLICT OF INTEREST FORM, WHEREBY ANY CONFLICTS ARE REQUIRED TO BE DISCLOSED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION FOR BSF'S FOUNDER AND CHIEF EXECUTIVE OFFICER, AS WELL AS OTHER OFFICERS AND KEY EMPLOYEES IS REVIEWED AND APPROVED BY THE BOARD OF DIRECTORS. THE REVIEW PROCESS CONDUCTED BY THE BOARD OF DIRECTORS IS BASED ON AN ANALYSIS OF COMPARABLE MARKET DATA WHICH CONSIDERS, AMONG OTHER CRITERIA, THE ROLES AND RESPONSIBILITIES OF THE POSITIONS BEING ASSESSED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 18</FormAndLineReferenceDesc>
        <ExplanationTxt>BSF'S FORM 1023 IS AVAILABLE UPON REQUEST. BSF'S FORM 990 IS AVAILABLE AT WWW.GUIDESTAR.ORG, AS WELL AS UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>BSF'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>PAYROLL SERVICES: PROGRAM SERVICE EXPENSES 762. MANAGEMENT AND GENERAL EXPENSES 254. FUNDRAISING EXPENSES 254. TOTAL EXPENSES 1,270. BOSTON SCHOOLS FINDER SUPPORT: PROGRAM SERVICE EXPENSES 402,171. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 402,171. POLICY SUPPORT: PROGRAM SERVICE EXPENSES 130,000. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 130,000.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS ASSUMES RESPONSIBILITY FOR THE OVERSIGHT OF THE AUDIT AND SELECTION OF THE INDEPENDENT ACCOUNTANT. THE PROCESS HAS NOT CHANGED DURING TAX YEAR 2018.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>