﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-11-08T15:33:43-06:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>463330935</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>AVENSON HAMANN CPAS LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>7421 BURNET ROAD 522</AddressLine1Txt>
        <CityNm>AUSTIN</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>78757</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>741648265</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>MARSALOM INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>MARS</BusinessNameControlTxt>
      <PhoneNum>7372959950</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1411 OLD SAYERS RD</AddressLine1Txt>
        <CityNm>BASTROP</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
        <ZIPCd>78602</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>CATHERINE BLEISH</PersonNm>
      <PersonTitleTxt>TREASURER</PersonTitleTxt>
      <PhoneNum>7372959950</PhoneNum>
      <SignatureDt>2024-11-08</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>1</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>CATHERINE AVENSON</PreparerPersonNm>
      <PTIN>P01259734</PTIN>
      <PhoneNum>5126939131</PhoneNum>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-10-15 13:58:12Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.GREENBRIARSCHOOL.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc1039100001">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>132850</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>19709</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>43093</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>69956</MembershipDuesAmt>
      <InvestmentIncomeAmt>55</InvestmentIncomeAmt>
      <OtherRevenueTotalAmt>37</OtherRevenueTotalAmt>
      <TotalRevenueAmt>132850</TotalRevenueAmt>
      <SalariesOtherCompEmplBnftAmt>15001</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>34303</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>39310</OccupancyRentUtltsAndMaintAmt>
      <OtherExpensesTotalAmt>12096</OtherExpensesTotalAmt>
      <TotalExpensesAmt>100710</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>32140</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>108537</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>140677</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>25349</BOYAmt>
        <EOYAmt>22617</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>29692</BOYAmt>
        <EOYAmt>43302</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>53496</BOYAmt>
        <EOYAmt>74758</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>108537</BOYAmt>
        <EOYAmt>140677</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>108537</BOYAmt>
        <EOYAmt>140677</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TO NURTURE A COMMUNITY THAT OFFERS STUDENT DRIVEN EDUCATIONAL PROGRAMS, AND THAT PROVIDES A CAMPUS TO MODEL COMPASSION, COOPERATION, AND LIFE IN HARMONY WITH NATURE.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>GREENBRIAR SCHOOL: CREATE A LEARNING ENVIRONMENT FOR STUDENTS THAT CULTIVATES A LIFE LONG LOVE OF LEARNING WHILE ENCOURAGING THE INTELLECTUAL AND EMOTIONAL GROWTH OF SELF AWARENESS, RESPECT FOR NATURE, AND READINESS TO THRIVE IN LIFE.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>40543</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>GREENBRIAR REGENERATIVE AGRICULTURE PROGRAM:CREATE A HANDS-ON ENVIRONMENT FOR STUDENTS OF ALL AGES THAT PROVIDES EDUCATION ON REGENERATIVE AGRICULTURE AND SUSTAINABLE FOOD PRODUCTION.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>GREENBRIAR COMMUNITY:AN EDUCATION FOCUSED COMMUNITY THAT PROVIDES OPERATIONAL SUPPORT AND STEWARDSHIP OF THE LAND FOR GREENBRIAR SCHOOL.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>53382</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>93925</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ASHLEY WIECEK</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>6038</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>WILLIAM KRUCKEBURG</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DAVID BALOUGH</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>3810</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>IONA TUTTLE</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>3194</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LAURA LEOM</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CATHERINE BLEISH</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>1959</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CHRISTINA LARSON</PersonNm>
        <TitleTxt>SAFETY OFFICER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
      <TaxReimbursedByOrganizationAmt>0</TaxReimbursedByOrganizationAmt>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>THE ORGANIZATION</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>1411 OLD SAYERS RD</AddressLine1Txt>
          <CityNm>BASTROP</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>78602</ZIPCd>
        </USAddress>
        <PhoneNum>7372959950</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SchoolOperatingInd referenceDocumentId="RetDoc1040400001">1</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>1</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <SchoolInd>X</SchoolInd>
    </IRS990ScheduleA>
    <IRS990ScheduleE documentId="RetDoc1040400001">
      <NondiscriminatoryPolicyStmtInd>1</NondiscriminatoryPolicyStmtInd>
      <PolicyStmtInBrochuresEtcInd>1</PolicyStmtInBrochuresEtcInd>
      <PlcyPblczdViaBroadcastMediaInd>1</PlcyPblczdViaBroadcastMediaInd>
      <MaintainRacialCompRecsInd>1</MaintainRacialCompRecsInd>
      <MaintainScholarshipsRecsInd>1</MaintainScholarshipsRecsInd>
      <MaintainCpyOfBrochuresEtcInd>1</MaintainCpyOfBrochuresEtcInd>
      <MaintainCpyOfAllSolInd>1</MaintainCpyOfAllSolInd>
      <DiscriminateRaceStdntsRghtsInd>0</DiscriminateRaceStdntsRghtsInd>
      <DiscriminateRaceAdmissPlcyInd>0</DiscriminateRaceAdmissPlcyInd>
      <DiscriminateRaceEmplmFcultyInd>0</DiscriminateRaceEmplmFcultyInd>
      <DiscriminateRaceSchsInd>0</DiscriminateRaceSchsInd>
      <DiscriminateRaceEducPlcyInd>0</DiscriminateRaceEducPlcyInd>
      <DiscriminateRaceUseOfFcltsInd>0</DiscriminateRaceUseOfFcltsInd>
      <DiscriminateRaceAthltProgInd>0</DiscriminateRaceAthltProgInd>
      <DiscriminateRaceOtherActyInd>0</DiscriminateRaceOtherActyInd>
      <GovernmentFinancialAidRcvdInd>0</GovernmentFinancialAidRcvdInd>
      <GovernmentFinancialAidRvkdInd>0</GovernmentFinancialAidRvkdInd>
      <ComplianceWithRevProc7550Ind>1</ComplianceWithRevProc7550Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE E, PART I, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE RACIALLY NONDISCRIMANATORY POLICY IS DISPLAYED ON THE WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleE>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: INTEREST INCOME. AMOUNT: 55. TOTAL TO FORM 990-EZ, LINE 14: 39,310.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 8 - OTHER REVENUE</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: CASH BACK REWARDS. AMOUNT: 37.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 14</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: DEPRECIATION. AMOUNT: 1,227. DESCRIPTION: OTHER EXPENSES. AMOUNT: 38,083.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: DUES AND SUBSCRIPTIONS. AMOUNT: 29. DESCRIPTION: SUPPLIES. AMOUNT: 4,614. DESCRIPTION: BANK AND CREDIT CARD FEES. AMOUNT: 3,796. DESCRIPTION: MISCELLANEOUS EXPENSES. AMOUNT: 3,657. TOTAL TO FORM 990-EZ, LINE 16: 12,096.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24 - OTHER ASSETS</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: ACCOUNTS RECEIVABLE. BEG. OF YEAR AMOUNT: 22,517. END OF YEAR AMOUNT: 44,163. DESCRIPTION: CD. BEG. OF YEAR AMOUNT: 27,668. END OF YEAR AMOUNT: 27,724. DESCRIPTION: OTHER DEPRECIABLE ASSETS. BEG. OF YEAR AMOUNT: 3,311. END OF YEAR AMOUNT: 2,871.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc2278000001">
      <DeclarationDesc>THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>