Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 57-0810383 • 501(c)4 • Johns Island, SC
Profile
The primary exempt purpose of the Seabrook Island Natural History Group (SINHG) is to disseminate natural history and cultural history information about Charleston and the Low Country to its members through field trips and lectures. In addition, the Group provides the opportunity for members to informally share their experiences through special events. The group encourages education in their Johns Island community by providing grants to organizations focusing on education, the environment and local history.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
61st percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
25th percentile
Higher net margin than 25% of similar nonprofits.
Top Officer Pay
89th percentile
Higher top officer pay than 89% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
14th percentile
Faster asset growth than 14% of similar nonprofits.
Revenue Growth
21st percentile
Faster revenue growth than 21% of similar nonprofits.
Assets
Down$4,183
Down $6,646 (-61%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Down$4,183
Down $6,646 (-61%) from 2024
Revenue
Down$42,637
Down $23,417 (-35%) from 2024
Expenses
Down$49,283
Down $15,409 (-24%) from 2024
Net Income
Down-$6,646
Down $8,008 (-588%) from 2024
Most recent year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.
The purpose of the seabrook island natural history group is to disseminate natural history and cultural history information about charleston and the low country to its members through field trips and lectures. In addition, the group provides the opportunity for members to informally share their experiences through two special events. The group encourages education in their john's island community by providing grants to organizations focusing on education, the environment, and local history.
The primary exempt purpose of the Seabrook Island Natural History Group (SINHG) is to disseminate natural history and cultural history information about Charleston and the Low Country to its members through field trips and lectures. In addition, the Group provides the opportunity for members to informally share their experiences through special events. The group encourages education in their Johns Island community by providing grants to organizations focusing on education, the environment and local history.
| Description | Grants | Expenses |
|---|---|---|
| The Seabrook Island Natural History Group offers excursions to its members in the Spring and Fall of each year. The trips are chosen and organized to enhance members knowledge and experiences in the environmental, historical and cultural heritage of the area. The Organization also encourages education in the Johns Island community by funding local scholarship, environmental projects and other activities aligned with the Organization's purpose. In FY 2024 47 trips were taken by approximately 445 active member attendees. | $0 | $33,926 |
| The Seabrook Island Natural History Group offers a series of evening lectures during the year. These lectures are presented by qualified experts in their subjects and provide members the opportunity to broaden their knowledge of history, the environment and local institutions and culture. In FY 2024, 5 evening programs were presented | $0 | $1,617 |
| The Seabrook Island Natural History Group provides the opportunity for members to informally share their experiences with the environmental, historical and cultural heritage of the area through special events. In FY 2024 one such event was held. | $0 | $1,545 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Lynn Baker | President | PT | $0 | - | - |
| Pat Short | Vice President | PT | $0 | - | - |
| Vivien Joklik | Secretary | - | $0 | - | - |
| Cindy Mulligan | Treasurer | PT | $0 | - | - |
| Pat Short | Trip Coordinator | - | $0 | - | - |
| Lynn Baker | Trip Planner | - | $0 | - | - |
| Mary Gwen | Evening Program | - | $0 | - | - |
| Stephanie Hamilton | Membership | - | $0 | - | - |
| Pat Short | Communications | - | $0 | - | - |
| Lynn Maney-MacIntosh | Volunteer Coordinator | - | $0 | - | - |
| Joyce Phillips | Philanthropy | - | $0 | - | - |
“Charleston Animal Society -$!,000, Seabrook Island Green Space Conservatory-$2,000, Angel Oak Preserve $2,000”
“Description;Amount^Bank Fees;1919|Insurance;2619|Meetings;1545|Program Expense;35543|Other expense;523|Website;1334^Total;43483^”
“Description;EOY Amount^Security Deposit on Meeting Room;800^Total;800^”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990EZ/BenefitsPaidToOrForMembersAmt | 0 | 0 |
| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | Cindy Mulligan |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 8437683272 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PMB 612 130 Gardners Circle |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | Johns Island |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | SC |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 29455 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 10029 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 3383 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 0 |
| IRS990EZ/CostOfGoodsSoldAmt | 0 | 0 |
| IRS990EZ/CostOrOtherBasisExpenseSaleAmt | 0 | 0 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | -6646 |
| IRS990EZ/FeesAndOtherPymtToIndCntrctAmt | 0 | 0 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form1120PolFiledInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 10829 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 4183 |
| IRS990EZ/FundraisingGrossIncomeAmt | 0 | 0 |
| IRS990EZ/GainOrLossFromSaleOfAssetsAmt | 0 | 0 |
| IRS990EZ/GamingGrossIncomeAmt | 0 | 0 |
| IRS990EZ/GrantsAndSimilarAmountsPaidAmt | 0 | 5000 |
| IRS990EZ/GrossProfitLossSlsOfInvntryAmt | 0 | 0 |
| IRS990EZ/GrossReceiptsAmt | 0 | 42637 |
| IRS990EZ/GrossSalesOfInventoryAmt | 0 | 0 |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InvestmentIncomeAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/BOYAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/EOYAmt | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MembershipDuesAmt | 0 | 3906 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 10829 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 4183 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 10829 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 4183 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 500 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 5 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 5 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 3 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 5 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 5 | 1 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 1 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 8 | 4 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 9 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 10 | 1 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Lynn Baker |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | Pat Short |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | Vivien Joklik |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | Cindy Mulligan |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | Pat Short |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | Lynn Baker |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | Mary Gwen |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | Stephanie Hamilton |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 8 | Pat Short |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 9 | Lynn Maney-MacIntosh |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 10 | Joyce Phillips |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | Vice President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | Secretary |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | Treasurer |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 4 | Trip Coordinator |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | Trip Planner |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | Evening Program |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | Membership |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 8 | Communications |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 9 | Volunteer Coordinator |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 10 | Philanthropy |
| IRS990EZ/OperateHospitalInd | 0 | 0 |
| IRS990EZ/Organization501cInd | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990EZ/OrganizationHadUBIInd | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 800 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 800 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 43483 |
| IRS990EZ/OtherRevenueTotalAmt | 0 | 0 |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | The primary exempt purpose of the Seabrook Island Natural History Group (SINHG) is to disseminate natural history and cultural history information about Charleston and the Low Country to its members through field trips and lectures. In addition, the Group provides the opportunity for members to informally share their experiences through special events. The group encourages education in their Johns Island community by providing grants to organizations focusing on education, the environment and local history. |
| IRS990EZ/PrintingPublicationsPostageAmt | 0 | 300 |
| IRS990EZ/ProgramServiceRevenueAmt | 0 | 38731 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | The Seabrook Island Natural History Group offers excursions to its members in the Spring and Fall of each year. The trips are chosen and organized to enhance members knowledge and experiences in the environmental, historical and cultural heritage of the area. The Organization also encourages education in the Johns Island community by funding local scholarship, environmental projects and other activities aligned with the Organization's purpose. In FY 2024 47 trips were taken by approximately 445 active member attendees. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 1 | The Seabrook Island Natural History Group offers a series of evening lectures during the year. These lectures are presented by qualified experts in their subjects and provide members the opportunity to broaden their knowledge of history, the environment and local institutions and culture. In FY 2024, 5 evening programs were presented |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 2 | The Seabrook Island Natural History Group provides the opportunity for members to informally share their experiences with the environmental, historical and cultural heritage of the area through special events. In FY 2024 one such event was held. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 1 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 2 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 33926 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 1 | 1617 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 2 | 1545 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/SalariesOtherCompEmplBnftAmt | 0 | 0 |
| IRS990EZ/SaleOfAssetsGrossAmt | 0 | 0 |
| IRS990EZ/ScheduleBNotRequiredInd | 0 | X |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 0 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 0 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | SC |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 49283 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 37088 |
| IRS990EZ/TotalRevenueAmt | 0 | 42637 |
| IRS990EZ/TransactionWithControlEntInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | SINHG.org |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Charleston Animal Society -$!,000, Seabrook Island Green Space Conservatory-$2,000, Angel Oak Preserve $2,000 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Description;Amount^Bank Fees;1919|Insurance;2619|Meetings;1545|Program Expense;35543|Other expense;523|Website;1334^Total;43483^ |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Description;EOY Amount^Security Deposit on Meeting Room;800^Total;800^ |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990-EZ, Part I, Line 10 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990-EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990-EZ, Part II, Line 24 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Lynn Baker |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | President |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 8452422344 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-08-23 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | SEABROOK ISLAND NATURAL HISTORY GROUP |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | SEAB |
| ReturnHeader/Filer/EIN | 0 | 570810383 |
| ReturnHeader/Filer/PhoneNum | 0 | 9192702986 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PMB 612 130 Gardners Circle |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Johns Island |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | SC |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 29455 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 1 |
| ReturnHeader/ReturnTs | 0 | 2025-08-25T12:20:09-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-06-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-05-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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