MUSEUM OF SCIENCE & HISTORY OF JACKSONVILLE INC: Form 990, tax year 2024

View the entire original 990 at ProPublica ↗

Organization: MUSEUM OF SCIENCE & HISTORY OF JACKSONVILLE INC (EIN 59-0651090)
Tax period: 2024-06-01 to 2025-05-31
Filed: 2025-10-09
IRS object ID: 202542829349301134
Schema version: 2024v5.1
Source: Download XML · Original 990 at ProPublica

Every field in the e-filed return. Faint text is the IRS element name, for citing.

Return header
Form 990
Schedule A
Schedule B
Schedule C
Schedule D
Schedule J
Schedule O

Return header ReturnHeader

Field	Value	IRS element (for citing)
Return	2025-10-09T11:26:57+00:00	ReturnTs
Tax Period End	2025-05-31	TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

Field	Value	IRS element (for citing)
Preparer Firm EIN	440160260	PreparerFirmEIN

Preparer Firm Name PreparerFirmName

Field	Value	IRS element (for citing)
Business Name Line1	Forvis Mazars LLP	BusinessNameLine1Txt

Preparer US Address PreparerUSAddress

Field	Value	IRS element (for citing)
Address Line1	500 Ridgefield Court	AddressLine1Txt
City	Asheville	CityNm
State Abbreviation	NC	StateAbbreviationCd
ZIP	28806	ZIPCd

Field	Value	IRS element (for citing)
Return Type	990	ReturnTypeCd
Tax Period Begin	2024-06-01	TaxPeriodBeginDt

Filer Filer

Field	Value	IRS element (for citing)
EIN	590651090	EIN

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Museum of Science and History of Jacksonville Inc	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Business Name Control	MUSE	BusinessNameControlTxt
Phone	9043967062	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1025 Museum Circle	AddressLine1Txt
City	Jacksonville	CityNm
State Abbreviation	FL	StateAbbreviationCd
ZIP	32207	ZIPCd

Business Officer BusinessOfficerGrp

Field	Value	IRS element (for citing)
Person	ALISTAIR DOVE	PersonNm
Person Title	President	PersonTitleTxt
Signature	2025-10-09	SignatureDt
Discuss With Paid Preparer	Yes (true)	DiscussWithPaidPreparerInd

Field	Value	IRS element (for citing)
IRS Responsible Prty Info Curr	Yes (true)	IRSResponsiblePrtyInfoCurrInd

Preparer Person PreparerPersonGrp

Field	Value	IRS element (for citing)
Preparer Person	Amy Bibby	PreparerPersonNm
PTIN	P00445891	PTIN
Phone	8282542254	PhoneNum
Preparation	2025-04-30	PreparationDt

Field	Value	IRS element (for citing)
Tax	2024	TaxYr
Build TS	2025-03-06 01:10:19Z	BuildTS

Form 990 IRS990

Principal Ofcr Business Name PrincipalOfcrBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	ALISTAIR DOVE	BusinessNameLine1Txt

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1025 Museum Circle	AddressLine1Txt
City	Jacksonville	CityNm
State Abbreviation	FL	StateAbbreviationCd
ZIP	32207	ZIPCd

Field	Value	IRS element (for citing)
Gross Receipts	$9,727,239	GrossReceiptsAmt
Group Return For Affiliates	false	GroupReturnForAffiliatesInd
Organization501c3	Yes (X)	Organization501c3Ind
Website Address	WWW.THEMOSH.ORG	WebsiteAddressTxt
Type Of Organization Corp	Yes (X)	TypeOfOrganizationCorpInd
Formation	1964	FormationYr
Legal Domicile State	FL	LegalDomicileStateCd
Activity Or Mission	OPERATION OF MUSEUM IN JACKSONVILLE, FLORIDA	ActivityOrMissionDesc
Voting Members Governing Body	27	VotingMembersGoverningBodyCnt
Voting Members Independent	27	VotingMembersIndependentCnt
Total Employee	60	TotalEmployeeCnt
Total Volunteers	196	TotalVolunteersCnt
Total Gross UBI	$66,912	TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm	$0	NetUnrelatedBusTxblIncmAmt
PY Contributions Grants	$17,901,555	PYContributionsGrantsAmt
CY Contributions Grants	$7,236,050	CYContributionsGrantsAmt
PY Program Service Revenue	$2,148,633	PYProgramServiceRevenueAmt
CY Program Service Revenue	$1,755,172	CYProgramServiceRevenueAmt
PY Investment Income	$159,438	PYInvestmentIncomeAmt
CY Investment Income	$391,943	CYInvestmentIncomeAmt
PY Other Revenue	-$42,247	PYOtherRevenueAmt
CY Other Revenue	$239,040	CYOtherRevenueAmt
PY Total Revenue	$20,167,379	PYTotalRevenueAmt
CY Total Revenue	$9,622,205	CYTotalRevenueAmt
PY Grants And Similar Paid	$0	PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid	$0	CYGrantsAndSimilarPaidAmt
PY Benefits Paid To Members	$0	PYBenefitsPaidToMembersAmt
CY Benefits Paid To Members	$0	CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid	$2,296,845	PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid	$2,237,633	CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns	$0	PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns	$0	CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense	$1,240,184	CYTotalFundraisingExpenseAmt
PY Other Expenses	$2,862,578	PYOtherExpensesAmt
CY Other Expenses	$3,692,448	CYOtherExpensesAmt
PY Total Expenses	$5,159,423	PYTotalExpensesAmt
CY Total Expenses	$5,930,081	CYTotalExpensesAmt
PY Revenues Less Expenses	$15,007,956	PYRevenuesLessExpensesAmt
CY Revenues Less Expenses	$3,692,124	CYRevenuesLessExpensesAmt
Total Assets BOY	$31,434,332	TotalAssetsBOYAmt
Total Assets EOY	$35,497,241	TotalAssetsEOYAmt
Total Liabilities BOY	$471,494	TotalLiabilitiesBOYAmt
Total Liabilities EOY	$864,675	TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY	$30,962,838	NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY	$34,632,566	NetAssetsOrFundBalancesEOYAmt
Mission	THE MUSEUM OF SCIENCE AND HISTORY OF JACKSONVILLE ("MOSH") INSPIRES THE JOY OF LIFELONG LEARNING BY BRINGING TO LIFE THE SCIENCES AND REGIONAL HISTORY.	MissionDesc
Significant New Program Srvc	false	SignificantNewProgramSrvcInd
Significant Change	false	SignificantChangeInd
Expense	$2,169,734	ExpenseAmt
Revenue	$1,334,789	RevenueAmt
Desc	EXHIBITS - The museum has been dedicated to improving the quality of life for Northeast Florida for 80 years by collecting, preserving and actively interpreting the region's cultural and natural history. In FY 2022-2025, MOSH recorded 78,777 paid admissions, with a total of 137,307 served by programs and events.	Desc

Prog Srvc Accom Acty2 ProgSrvcAccomActy2Grp

Field	Value	IRS element (for citing)
Expense	$1,392,675	ExpenseAmt
Revenue	$486,264	RevenueAmt
Desc	EDUCATION AND PROGRAMS - The museum also served the community by hosting various programs including winter, spring and summer camps, numerous Boy and Girl Scout events, Early Learner programs, Outreach Programs, and competitions as part of its mission to be a cultural, educational and recreational resource for the community. In total the museum served 137,307 people in FY 2024-2025. These included 37,002 school children served through field trips and programs, 42,171 participants in public community programs, and 4,647 participants in educational outreaches and off-site engagements in 25 counties across North Florida and Southeast Georgia. 9,057 students served by MOSH in FY 2024-2025 came from Title 1 schools.	Desc

Prog Srvc Accom Acty3 ProgSrvcAccomActy3Grp

Field	Value	IRS element (for citing)
Expense	$315,254	ExpenseAmt
Revenue	$58,497	RevenueAmt
Desc	PLANETARIUM - In October 2010, the museum constructed a digital planetarium to supplement programming to further its mission of inspiring the joy of learning by bringing to life the sciences and regional history of North Florida. In FY 2024-2025 the museum presented live and produced shows to the public and school groups.	Desc

Field	Value	IRS element (for citing)
Total Program Service Expenses	$3,877,663	TotalProgramServiceExpensesAmt
Described In Section501c3	Yes (true)	DescribedInSection501c3Ind
Schedule B Required	Yes (true)	ScheduleBRequiredInd
Political Campaign Acty	false	PoliticalCampaignActyInd
Lobbying Activities	Yes (true)	LobbyingActivitiesInd
Subject To Proxy Tax	false	SubjectToProxyTaxInd
Donor Advised Fund	false	DonorAdvisedFundInd
Conservation Easements	false	ConservationEasementsInd
Collections Of Art	Yes (true)	CollectionsOfArtInd
Credit Counseling	false	CreditCounselingInd
Donor Rstr Or Quasi Endowments	Yes (true)	DonorRstrOrQuasiEndowmentsInd
Report Land Building Equipment	Yes (true)	ReportLandBuildingEquipmentInd
Report Investments Other Sec	false	ReportInvestmentsOtherSecInd
Report Program Related Invst	false	ReportProgramRelatedInvstInd
Report Other Assets	false	ReportOtherAssetsInd
Report Other Liabilities	false	ReportOtherLiabilitiesInd
Include FIN48 Footnote	Yes (true)	IncludeFIN48FootnoteInd
Independent Audit Fincl Stmt	Yes (true)	IndependentAuditFinclStmtInd
Consolidated Audit Fincl Stmt	false	ConsolidatedAuditFinclStmtInd
School Operating	false	SchoolOperatingInd
Foreign Office	false	ForeignOfficeInd
Foreign Activities	false	ForeignActivitiesInd
More Than5000 K To Org	false	MoreThan5000KToOrgInd
More Than5000 K To Individuals	false	MoreThan5000KToIndividualsInd
Professional Fundraising	false	ProfessionalFundraisingInd
Fundraising Activities	false	FundraisingActivitiesInd
Gaming Activities	false	GamingActivitiesInd
Operate Hospital	false	OperateHospitalInd
Grants To Organizations	false	GrantsToOrganizationsInd
Grants To Individuals	false	GrantsToIndividualsInd
Schedule J Required	Yes (true)	ScheduleJRequiredInd
Tax Exempt Bonds	false	TaxExemptBondsInd
Escrow Account	false	EscrowAccountInd
On Behalf Of Issuer	false	OnBehalfOfIssuerInd
Engaged In Excess Benefit Trans	false	EngagedInExcessBenefitTransInd
PY Excess Benefit Trans	false	PYExcessBenefitTransInd
Loan Outstanding	false	LoanOutstandingInd
Grant To Related Person	false	GrantToRelatedPersonInd
Business Rln With Org Mem	false	BusinessRlnWithOrgMemInd
Business Rln With Fam Mem	false	BusinessRlnWithFamMemInd
Business Rln With35 Ctrl Ent	false	BusinessRlnWith35CtrlEntInd
Deductible Non Cash Contri	false	DeductibleNonCashContriInd
Deductible Art Contribution	false	DeductibleArtContributionInd
Terminate Operations	false	TerminateOperationsInd
Partial Liquidation	false	PartialLiquidationInd
Disregarded Entity	false	DisregardedEntityInd
Related Entity	false	RelatedEntityInd
Related Organization Ctrl Ent	false	RelatedOrganizationCtrlEntInd
Transaction With Control Ent	false	TransactionWithControlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org	false	TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp	false	ActivitiesConductedPrtshpInd
Schedule O Required	Yes (true)	ScheduleORequiredInd
IRP Document	22	IRPDocumentCnt
IRP Document W2 G	0	IRPDocumentW2GCnt
Backup Wthld Compliance	Yes (true)	BackupWthldComplianceInd
Employee	60	EmployeeCnt
Employment Tax Returns Filed	Yes (true)	EmploymentTaxReturnsFiledInd
Unrelated Bus Incm Over Limit	Yes (true)	UnrelatedBusIncmOverLimitInd
Form990 T Filed	Yes (true)	Form990TFiledInd
Foreign Financial Account	false	ForeignFinancialAccountInd
Prohibited Tax Shelter Trans	false	ProhibitedTaxShelterTransInd
Taxable Party Notification	false	TaxablePartyNotificationInd
Nondeductible Contributions	false	NondeductibleContributionsInd
Quid Pro Quo Contributions	false	QuidProQuoContributionsInd
Form8282 Property Disposed Of	false	Form8282PropertyDisposedOfInd
Rcv Fnds To Pay Prsnl Bnft Cntrct	false	RcvFndsToPayPrsnlBnftCntrctInd
Pay Premiums Prsnl Bnft Cntrct	false	PayPremiumsPrsnlBnftCntrctInd
Indoor Tanning Services	false	IndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht Pymt	false	SubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst Inc	false	SubjectToExcsTaxNetInvstIncInd
Info In Schedule O Part VI	Yes (X)	InfoInScheduleOPartVIInd
Governing Body Voting Members	27	GoverningBodyVotingMembersCnt
Independent Voting Member	27	IndependentVotingMemberCnt
Family Or Business Rln	false	FamilyOrBusinessRlnInd
Delegation Of Mgmt Duties	false	DelegationOfMgmtDutiesInd
Change To Org Documents	false	ChangeToOrgDocumentsInd
Material Diversion Or Misuse	false	MaterialDiversionOrMisuseInd
Members Or Stockholders	Yes (true)	MembersOrStockholdersInd
Election Of Board Members	Yes (true)	ElectionOfBoardMembersInd
Decisions Subject To Approva	false	DecisionsSubjectToApprovaInd
Minutes Of Governing Body	Yes (true)	MinutesOfGoverningBodyInd
Minutes Of Committees	Yes (true)	MinutesOfCommitteesInd
Officer Mailing Address	false	OfficerMailingAddressInd
Local Chapters	false	LocalChaptersInd
Policies Reference Chapters	false	PoliciesReferenceChaptersInd
Form990 Provided To Gvrn Body	Yes (true)	Form990ProvidedToGvrnBodyInd
Conflict Of Interest Policy	Yes (true)	ConflictOfInterestPolicyInd
Annual Disclosure Covered Prsn	Yes (true)	AnnualDisclosureCoveredPrsnInd
Regular Monitoring Enfrc	Yes (true)	RegularMonitoringEnfrcInd
Whistleblower Policy	Yes (true)	WhistleblowerPolicyInd
Document Retention Policy	Yes (true)	DocumentRetentionPolicyInd
Compensation Process CEO	Yes (true)	CompensationProcessCEOInd
Compensation Process Other	Yes (true)	CompensationProcessOtherInd
Investment In Joint Venture	false	InvestmentInJointVentureInd
Written Policy Or Procedure	false	WrittenPolicyOrProcedureInd
Upon Request	Yes (X)	UponRequestInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	The Organization	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Phone	9043966674	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1025 Museum Circle	AddressLine1Txt
City	Jacksonville	CityNm
State Abbreviation	FL	StateAbbreviationCd
ZIP	32207	ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (28 entries)

TitleTitleTxt	Average Hours Per WeekAverageHoursPerWeekRt	Average Hours Per Week Rltd OrgAverageHoursPerWeekRltdOrgRt	Individual Trustee Or DirectorIndividualTrusteeOrDirectorInd	OfficerOfficerInd	Reportable Comp From OrgReportableCompFromOrgAmt	Reportable Comp From Rltd OrgReportableCompFromRltdOrgAmt	Other CompensationOtherCompensationAmt
Chris Kalin
Long Range Planning Advisory Chair	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Christian Harden
Genesis Oversight Chair	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Jill Davis
Vice Chair	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Justin Avery
Treasurer	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Katie Borghese
Development Chair	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Lindsey Riggs
Governance Chair	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Timothy Johnson
Assistant Secretary	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
William Magevney
Chair	1.0	0.0	Yes (X)	Yes (X)	$0	$0	$0
Amanda Jones
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Annie Erstling
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Brenton Farwell
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Brian Wolfburg
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Britt Morgan-Saks
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Bryan Franks
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Bryan Hipsher
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Chris Haley
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Darryl Willie
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
David Smith
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Edythe Abdullah
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Emily Rhodin
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Joe Arnall
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Khwaja Shaik
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Lauren Baker
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Matt Stupski
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Nathaniel Marty
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Ray Ingrassia
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Steve Fortune
Trustee	1.0	0.0	Yes (X)		$0	$0	$0
Alistair Dove
CEO	40.0	0.0		Yes (X)	$230,000	$0	$0

Field	Value	IRS element (for citing)
Total Reportable Comp From Org	$230,000	TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org	$0	TotReportableCompRltdOrgAmt
Total Other Compensation	$0	TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K	1	IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed	false	FormerOfcrEmployeesListedInd
Total Comp Greater Than150 K	Yes (true)	TotalCompGreaterThan150KInd
Compensation From Other Srcs	false	CompensationFromOtherSrcsInd

Contractor Compensation ContractorCompensationGrp (5 entries)

Address Line1ContractorAddress/USAddress/AddressLine1Txt	CityContractorAddress/USAddress/CityNm	State AbbreviationContractorAddress/USAddress/StateAbbreviationCd	ZIPContractorAddress/USAddress/ZIPCd	ServicesServicesDesc	CompensationCompensationAmt
Ralph Applebaum Associates
88 Pine Street Mezzanine	New York	NY	10005	Design Work	$1,871,500
SMITHGROUP
1700 New York Avenue NW Suite 100	Washington	DC	20006	Design Work	$1,557,365
Nine Oaks Development
7783 Collins Grove Road	Jacksonville	FL	32256	Owner's Rep Services	$195,684
The Southern Group
PO Box 10570	Tallahassee	FL	32302	Lobbying	$192,270
SBS Services Group
PO Box 208299	Dallas	TX	75320	Cleaning	$144,736

Field	Value	IRS element (for citing)
Cntrct Rcvd Greater Than100 K	6	CntrctRcvdGreaterThan100KCnt
Membership Dues	$184,824	MembershipDuesAmt
Government Grants	$561,505	GovernmentGrantsAmt
All Other Contributions	$6,489,721	AllOtherContributionsAmt
Total Contributions	$7,236,050	TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp (2 entries)

DescDesc	BusinessBusinessCd	Total Revenue ColumnTotalRevenueColumnAmt	Related Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt
PROGRAM FEES	900099	$583,253	$583,253
GATE RECEIPTS	900099	$1,171,919	$1,171,919

Total Oth Program Service Rev TotalOthProgramServiceRevGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$0	TotalRevenueColumnAmt
Related Or Exempt Func Income	$0	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$0	UnrelatedBusinessRevenueAmt
Exclusion	$0	ExclusionAmt

Field	Value	IRS element (for citing)
Total Program Service Revenue	$1,755,172	TotalProgramServiceRevenueAmt

Investment Income InvestmentIncomeGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$274,678	TotalRevenueColumnAmt
Exclusion	$274,678	ExclusionAmt

Gross Rents GrossRentsGrp

Field	Value	IRS element (for citing)
Real	$47,750	RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Real	$47,750	RealAmt
Personal	$0	PersonalAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$47,750	TotalRevenueColumnAmt
Exclusion	$47,750	ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

Field	Value	IRS element (for citing)
Securities	$117,265	SecuritiesAmt

Gain Or Loss GainOrLossGrp

Field	Value	IRS element (for citing)
Securities	$117,265	SecuritiesAmt
Other	$0	OtherAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$117,265	TotalRevenueColumnAmt
Exclusion	$117,265	ExclusionAmt

Net Incm From Fundraising Evt NetIncmFromFundraisingEvtGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$0	TotalRevenueColumnAmt

Field	Value	IRS element (for citing)
Gross Sales Of Inventory	$296,324	GrossSalesOfInventoryAmt
Cost Of Goods Sold	$105,034	CostOfGoodsSoldAmt

Net Income Or Loss NetIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$191,290	TotalRevenueColumnAmt
Related Or Exempt Func Income	$124,378	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$66,912	UnrelatedBusinessRevenueAmt

Miscellaneous Revenue MiscellaneousRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$0	TotalRevenueColumnAmt
Related Or Exempt Func Income	$0	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$0	UnrelatedBusinessRevenueAmt
Exclusion	$0	ExclusionAmt

Field	Value	IRS element (for citing)
Other Revenue Total	$0	OtherRevenueTotalAmt

Total Revenue TotalRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$9,622,205	TotalRevenueColumnAmt
Related Or Exempt Func Income	$1,879,550	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$66,912	UnrelatedBusinessRevenueAmt
Exclusion	$439,693	ExclusionAmt

Field	Value	IRS element (for citing)
Info In Schedule O Part IX	Yes (X)	InfoInScheduleOPartIXInd

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

Field	Value	IRS element (for citing)
Total	$240,000	TotalAmt
Program Services	$48,000	ProgramServicesAmt
Management And General	$96,000	ManagementAndGeneralAmt
Fundraising	$96,000	FundraisingAmt

Other Salaries And Wages OtherSalariesAndWagesGrp

Field	Value	IRS element (for citing)
Total	$1,636,664	TotalAmt
Program Services	$1,255,265	ProgramServicesAmt
Management And General	$7,036	ManagementAndGeneralAmt
Fundraising	$374,363	FundraisingAmt

Pension Plan Contributions PensionPlanContributionsGrp

Field	Value	IRS element (for citing)
Total	$29,717	TotalAmt
Program Services	$19,936	ProgramServicesAmt
Management And General	$1,978	ManagementAndGeneralAmt
Fundraising	$7,803	FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

Field	Value	IRS element (for citing)
Total	$101,222	TotalAmt
Program Services	$15,171	ProgramServicesAmt
Management And General	$12,414	ManagementAndGeneralAmt
Fundraising	$73,637	FundraisingAmt

Payroll Taxes PayrollTaxesGrp

Field	Value	IRS element (for citing)
Total	$230,030	TotalAmt
Program Services	$162,800	ProgramServicesAmt
Management And General	$31,509	ManagementAndGeneralAmt
Fundraising	$35,721	FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

Field	Value	IRS element (for citing)
Total	$182,155	TotalAmt
Management And General	$182,155	ManagementAndGeneralAmt

Fees For Services Accounting FeesForServicesAccountingGrp

Field	Value	IRS element (for citing)
Total	$60,438	TotalAmt
Management And General	$60,438	ManagementAndGeneralAmt

Fees For Services Lobbying FeesForServicesLobbyingGrp

Field	Value	IRS element (for citing)
Total	$96,135	TotalAmt
Management And General	$96,135	ManagementAndGeneralAmt

Fees For Srvc Invst Mgmnt Fees FeesForSrvcInvstMgmntFeesGrp

Field	Value	IRS element (for citing)
Total	$25,801	TotalAmt
Management And General	$25,801	ManagementAndGeneralAmt

Fees For Services Other FeesForServicesOtherGrp

Field	Value	IRS element (for citing)
Total	$657,997	TotalAmt
Program Services	$149,388	ProgramServicesAmt
Management And General	$61,798	ManagementAndGeneralAmt
Fundraising	$446,811	FundraisingAmt

Advertising AdvertisingGrp

Field	Value	IRS element (for citing)
Total	$248,524	TotalAmt
Program Services	$175,889	ProgramServicesAmt
Management And General	$34,042	ManagementAndGeneralAmt
Fundraising	$38,593	FundraisingAmt

Office Expenses OfficeExpensesGrp

Field	Value	IRS element (for citing)
Total	$276,815	TotalAmt
Program Services	$195,881	ProgramServicesAmt
Management And General	$37,932	ManagementAndGeneralAmt
Fundraising	$43,002	FundraisingAmt

Information Technology InformationTechnologyGrp

Field	Value	IRS element (for citing)
Total	$83,839	TotalAmt
Program Services	$59,336	ProgramServicesAmt
Management And General	$11,484	ManagementAndGeneralAmt
Fundraising	$13,019	FundraisingAmt

Occupancy OccupancyGrp

Field	Value	IRS element (for citing)
Total	$243,275	TotalAmt
Program Services	$219,625	ProgramServicesAmt
Management And General	$23,650	ManagementAndGeneralAmt

Travel TravelGrp

Field	Value	IRS element (for citing)
Total	$19,385	TotalAmt
Program Services	$13,720	ProgramServicesAmt
Management And General	$2,655	ManagementAndGeneralAmt
Fundraising	$3,010	FundraisingAmt

Depreciation Depletion DepreciationDepletionGrp

Field	Value	IRS element (for citing)
Total	$772,870	TotalAmt
Program Services	$636,762	ProgramServicesAmt
Management And General	$66,179	ManagementAndGeneralAmt
Fundraising	$69,929	FundraisingAmt

Insurance InsuranceGrp

Field	Value	IRS element (for citing)
Total	$139,056	TotalAmt
Program Services	$125,538	ProgramServicesAmt
Management And General	$13,518	ManagementAndGeneralAmt

Other Expenses OtherExpensesGrp

Field	Value	IRS element (for citing)
Desc	Exhibits	Desc
Total	$886,158	TotalAmt
Program Services	$800,352	ProgramServicesAmt
Management And General	$47,510	ManagementAndGeneralAmt
Fundraising	$38,296	FundraisingAmt

All Other Expenses AllOtherExpensesGrp

Field	Value	IRS element (for citing)
Total	$0	TotalAmt
Program Services	$0	ProgramServicesAmt
Management And General	$0	ManagementAndGeneralAmt
Fundraising	$0	FundraisingAmt

Total Functional Expenses TotalFunctionalExpensesGrp

Field	Value	IRS element (for citing)
Total	$5,930,081	TotalAmt
Program Services	$3,877,663	ProgramServicesAmt
Management And General	$812,234	ManagementAndGeneralAmt
Fundraising	$1,240,184	FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

Field	Value	IRS element (for citing)
BOY	$4,751,087	BOYAmt
EOY	$6,472,292	EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

Field	Value	IRS element (for citing)
BOY	$837,146	BOYAmt
EOY	$816,809	EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$20,158,594	BOYAmt
EOY	$19,516,147	EOYAmt

Receivables From Officers Etc ReceivablesFromOfficersEtcGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Rcvbl From Disqualified Prsn RcvblFromDisqualifiedPrsnGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Inventories For Sale Or Use InventoriesForSaleOrUseGrp

Field	Value	IRS element (for citing)
BOY	$42,858	BOYAmt
EOY	$52,701	EOYAmt

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

Field	Value	IRS element (for citing)
BOY	$574,838	BOYAmt
EOY	$102,868	EOYAmt

Field	Value	IRS element (for citing)
Land Bldg Equip Cost Or Other Bss	$17,005,821	LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec	$10,371,820	LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

Field	Value	IRS element (for citing)
BOY	$2,747,196	BOYAmt
EOY	$6,634,001	EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

Field	Value	IRS element (for citing)
BOY	$2,310,252	BOYAmt
EOY	$1,898,396	EOYAmt

Investments Other Securities InvestmentsOtherSecuritiesGrp

Field	Value	IRS element (for citing)
BOY	$0	BOYAmt

Investments Program Related InvestmentsProgramRelatedGrp

Field	Value	IRS element (for citing)
BOY	$0	BOYAmt

Intangible Assets IntangibleAssetsGrp

Field	Value	IRS element (for citing)
BOY	$12,361	BOYAmt
EOY	$4,027	EOYAmt

Other Assets Total OtherAssetsTotalGrp

Field	Value	IRS element (for citing)
BOY	$0	BOYAmt
EOY	$0	EOYAmt

Total Assets TotalAssetsGrp

Field	Value	IRS element (for citing)
BOY	$31,434,332	BOYAmt
EOY	$35,497,241	EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

Field	Value	IRS element (for citing)
BOY	$334,052	BOYAmt
EOY	$764,785	EOYAmt

Deferred Revenue DeferredRevenueGrp

Field	Value	IRS element (for citing)
BOY	$95,628	BOYAmt
EOY	$79,343	EOYAmt

Loans From Officers Directors LoansFromOfficersDirectorsGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Mortg Notes Pybl Scrd Invst Prop MortgNotesPyblScrdInvstPropGrp

Field	Value	IRS element (for citing)
BOY	$41,814	BOYAmt
EOY	$20,547	EOYAmt

Other Liabilities OtherLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$0	BOYAmt
EOY	$0	EOYAmt

Total Liabilities TotalLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$471,494	BOYAmt
EOY	$864,675	EOYAmt

Field	Value	IRS element (for citing)
Organization Follows FASB117	Yes (X)	OrganizationFollowsFASB117Ind

No Donor Restriction Net Assets NoDonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$5,889,913	BOYAmt
EOY	$9,489,222	EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$25,072,925	BOYAmt
EOY	$25,143,344	EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$30,962,838	BOYAmt
EOY	$34,632,566	EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$31,434,332	BOYAmt
EOY	$35,497,241	EOYAmt

Field	Value	IRS element (for citing)
Reconcilation Revenue Expnss	$3,692,124	ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst	-$28,870	NetUnrlzdGainsLossesInvstAmt
Donated Services And Use Fclts	$6,474	DonatedServicesAndUseFcltsAmt
Other Changes In Net Assets	$0	OtherChangesInNetAssetsAmt
Info In Schedule O Part XII	Yes (X)	InfoInScheduleOPartXIIInd
Method Of Accounting Accrual	Yes (X)	MethodOfAccountingAccrualInd
Accountant Compile Or Review	false	AccountantCompileOrReviewInd
FS Audited	Yes (true)	FSAuditedInd
Audit Committee	Yes (true)	AuditCommitteeInd
Federal Grant Audit Required	false	FederalGrantAuditRequiredInd

Schedule A IRS990ScheduleA

Field	Value	IRS element (for citing)
Public Organization170	Yes (X)	PublicOrganization170Ind

Gifts Grants Contri Rcvd170 GiftsGrantsContriRcvd170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$2,313,132	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$7,470,175	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$3,309,685	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$17,901,555	CurrentTaxYearMinus1YearAmt
Current Tax Year	$7,236,050	CurrentTaxYearAmt
Total	$38,230,597	TotalAmt

Tax Rev Levied Orgnztnl Bnft170 TaxRevLeviedOrgnztnlBnft170Grp

Field	Value	IRS element (for citing)
Total	$0	TotalAmt

Govt Furn Srvc Fclts Vl170 GovtFurnSrvcFcltsVl170Grp

Field	Value	IRS element (for citing)
Total	$0	TotalAmt

Total Calendar Year170 TotalCalendarYear170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$2,313,132	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$7,470,175	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$3,309,685	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$17,901,555	CurrentTaxYearMinus1YearAmt
Current Tax Year	$7,236,050	CurrentTaxYearAmt
Total	$38,230,597	TotalAmt

Field	Value	IRS element (for citing)
Substantial Contributors Tot	$13,278,109	SubstantialContributorsTotAmt
Public Support Total170	$24,952,488	PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$122,128	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$137,690	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$114,267	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$145,917	CurrentTaxYearMinus1YearAmt
Current Tax Year	$274,678	CurrentTaxYearAmt
Total	$794,680	TotalAmt

Unrelated Business Net Incm170 UnrelatedBusinessNetIncm170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$0	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$0	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$0	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$0	CurrentTaxYearMinus1YearAmt
Current Tax Year	$0	CurrentTaxYearAmt
Total	$0	TotalAmt

Other Income170 OtherIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$71,735	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$5,516	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$0	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$39	CurrentTaxYearMinus1YearAmt
Current Tax Year	$0	CurrentTaxYearAmt
Total	$77,290	TotalAmt

Field	Value	IRS element (for citing)
Total Support	$39,102,567	TotalSupportAmt
Gross Receipts Rltd Activities	$9,179,439	GrossReceiptsRltdActivitiesAmt
Public Support CY170	0.63813	PublicSupportCY170Pct
Public Support PY170	0.56237	PublicSupportPY170Pct
Thirty Thr Pct Suprt Tests CY170	Yes (X)	ThirtyThrPctSuprtTestsCY170Ind

Form990 Schedule A Part VI Form990ScheduleAPartVIGrp

Field	Value	IRS element (for citing)
Form And Line Reference	Schedule A, Part II, Line 10 Other Income	FormAndLineReferenceDesc
Explanation	DESCRIPTION - MISCELLANEOUS INCOME, COLUMN A - 71735.0, COLUMN B - 5516.0, COLUMN C - 0.0, COLUMN D - 39.0, COLUMN E - 0.0, COLUMN F - 77290.0;	ExplanationTxt

Schedule B IRS990ScheduleB

Contributor Information ContributorInformationGrp

Field	Value	IRS element (for citing)
Contributor	RESTRICTED	ContributorNum

Contributor Business Name ContributorBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	RESTRICTED	BusinessNameLine1

Contributor US Address ContributorUSAddress

Field	Value	IRS element (for citing)
Address Line1	RESTRICTED	AddressLine1
Address Line2	RESTRICTED	AddressLine2
City	RESTRICTED	City
State	RESTRICTED	State
ZIP Code	RESTRICTED	ZIPCode

Field	Value	IRS element (for citing)
Total Contributions	RESTRICTED	TotalContributionsAmt

Schedule C IRS990ScheduleC

Field	Value	IRS element (for citing)
Volunteers	false	VolunteersInd
Paid Staff Or Management	false	PaidStaffOrManagementInd
Media Advertisements	false	MediaAdvertisementsInd
Mailings Members	false	MailingsMembersInd
Publications Or Broadcast	false	PublicationsOrBroadcastInd
Grants Other Organizations	false	GrantsOtherOrganizationsInd
Direct Contact Legislators	false	DirectContactLegislatorsInd
Rallies Demonstrations	false	RalliesDemonstrationsInd
Other Activities	Yes (true)	OtherActivitiesInd
Other Activities	$96,135	OtherActivitiesAmt
Total Lobbying Expenditures	$96,135	TotalLobbyingExpendituresAmt
Not Described Section501c3	false	NotDescribedSection501c3Ind

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	Schedule C, Part II-B, Line 1 DETAILED DESCRIPTION OF THE LOBBYING ACTIVITY	FormAndLineReferenceDesc
Explanation	During FY2025 the organization hired a lobbyist to engage in conversations with local officials relating to funding and legislative initiatives connected to the organization's activities and expansion.	ExplanationTxt

Schedule D IRS990ScheduleD

Field	Value	IRS element (for citing)
Collection Used Pub Exhibition	Yes (X)	CollectionUsedPubExhibitionInd
Collection Used Preservation	Yes (X)	CollectionUsedPreservationInd
Solicited Assets Sale	false	SolicitedAssetsSaleInd

CY Endwmt Fund CYEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,310,252	BeginningYearBalanceAmt
Contributions	$60,469	ContributionsAmt
Investment Earnings Or Losses	$144,289	InvestmentEarningsOrLossesAmt
Other Expenditures	$616,614	OtherExpendituresAmt
End Year Balance	$1,898,396	EndYearBalanceAmt

CY Minus1 Yr Endwmt Fund CYMinus1YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,203,515	BeginningYearBalanceAmt
Contributions	$10,232	ContributionsAmt
Investment Earnings Or Losses	$250,935	InvestmentEarningsOrLossesAmt
Other Expenditures	$154,430	OtherExpendituresAmt
End Year Balance	$2,310,252	EndYearBalanceAmt

CY Minus2 Yr Endwmt Fund CYMinus2YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,502,591	BeginningYearBalanceAmt
Contributions	$311,763	ContributionsAmt
Investment Earnings Or Losses	-$80,600	InvestmentEarningsOrLossesAmt
Other Expenditures	$530,239	OtherExpendituresAmt
End Year Balance	$2,203,515	EndYearBalanceAmt

CY Minus3 Yr Endwmt Fund CYMinus3YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,791,164	BeginningYearBalanceAmt
Contributions	$14,754	ContributionsAmt
Investment Earnings Or Losses	-$179,952	InvestmentEarningsOrLossesAmt
Other Expenditures	$123,375	OtherExpendituresAmt
End Year Balance	$2,502,591	EndYearBalanceAmt

CY Minus4 Yr Endwmt Fund CYMinus4YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,196,129	BeginningYearBalanceAmt
Contributions	$15,179	ContributionsAmt
Investment Earnings Or Losses	$608,442	InvestmentEarningsOrLossesAmt
Other Expenditures	$28,586	OtherExpendituresAmt
End Year Balance	$2,791,164	EndYearBalanceAmt

Field	Value	IRS element (for citing)
Board Designated Balance EOY	1.0	BoardDesignatedBalanceEOYPct
Prmnnt Endowment Balance EOY	0.0	PrmnntEndowmentBalanceEOYPct
Term Endowment Balance EOY	0.0	TermEndowmentBalanceEOYPct
Endowments Held Unrelated Org	Yes (true)	EndowmentsHeldUnrelatedOrgInd
Endowments Held Related Org	false	EndowmentsHeldRelatedOrgInd

Buildings BuildingsGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$5,363,084	OtherCostOrOtherBasisAmt
Depreciation	$4,748,522	DepreciationAmt
Book Value	$614,562	BookValueAmt

Leasehold Improvements LeaseholdImprovementsGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$1,801,277	OtherCostOrOtherBasisAmt
Depreciation	$1,372,213	DepreciationAmt
Book Value	$429,064	BookValueAmt

Equipment EquipmentGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$9,841,460	OtherCostOrOtherBasisAmt
Depreciation	$4,251,085	DepreciationAmt
Book Value	$5,590,375	BookValueAmt

Field	Value	IRS element (for citing)
Total Book Value Land Buildings	$6,634,001	TotalBookValueLandBuildingsAmt
Total Liability	$0	TotalLiabilityAmt
Footnote Text	Yes (X)	FootnoteTextInd
Total Rev Etc Audited Fincl Stmt	$9,574,008	TotalRevEtcAuditedFinclStmtAmt
Net Unrealized Gains Invst	-$28,870	NetUnrealizedGainsInvstAmt
Donated Services And Use Fclts	$6,474	DonatedServicesAndUseFcltsAmt
Other Revenue	$0	OtherRevenueAmt
Revenue Not Reported	-$22,396	RevenueNotReportedAmt
Revenue Subtotal	$9,596,404	RevenueSubtotalAmt
Investment Expenses Not Incld	$25,801	InvestmentExpensesNotIncldAmt
Other Revenues Not Included	$0	OtherRevenuesNotIncludedAmt
Revenue Not Reported Fincl Stmt	$25,801	RevenueNotReportedFinclStmtAmt
Total Revenue Per Form990	$9,622,205	TotalRevenuePerForm990Amt
Tot Expns Etc Audited Fincl Stmt	$5,904,280	TotExpnsEtcAuditedFinclStmtAmt
Other Expenses Included	$0	OtherExpensesIncludedAmt
Expenses Not Reported	$0	ExpensesNotReportedAmt
Expenses Subtotal	$5,904,280	ExpensesSubtotalAmt
Investment Expenses Not Incld2	$25,801	InvestmentExpensesNotIncld2Amt
Other Expenses Not Included	$0	OtherExpensesNotIncludedAmt
Expenses Not Rpt Fincl Stmt	$25,801	ExpensesNotRptFinclStmtAmt
Total Expenses Per Form990	$5,930,081	TotalExpensesPerForm990Amt

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule D, Part III, Line 4 Collections of art - description of collections	THE PURPOSE OF THE ORGANIZATION IS TO PROMOTE A BETTER UNDERSTANDING AND APPRECIATION OF SCIENCE, HISTORY AND NATURAL HISTORY IN JACKSONVILLE AND NORTHEAST FLORIDA. THE MUSEUM EXHIBITS HISTORICAL TREASURES AND WORKS OF ART TO SUPPLEMENT THEIR PROGRAM SERVICES WHICH INCLUDES EXHIBITS, PLANETARIUM SHOWS AND EDUCATIONAL ACTIVITIES AND SERVICES.
Schedule D, Part V, Line 4 Intended uses of endowment funds	THE MUSEUM HAS THREE INDIVIDUAL ENDOWMENTS ESTABLISHED FOR A VARIETY OF PURPOSES. ITS ENDOWMENTS INCLUDE BOTH DONOR-RESTRICTED FUNDS AND FUNDS DESIGNATED BY THE BOARD OF TRUSTEES TO FUNCTION AS ENDOWMENTS.
Schedule D, Part X, Line 2 FIN 48 (ASC 740) footnote	The Museum is exempt from Federal income tax under Section 501(c)(3) of the Internal Revenue Code; accordingly, the accompanying financial statements do not reflect a provision or liability for federal and state income taxes. The Museum has determined that it does not have any material unrecognized tax benefits or obligations as of May 31, 2025 or 2024.

Schedule J IRS990ScheduleJ

Field	Value	IRS element (for citing)
Compensation Survey	Yes (X)	CompensationSurveyInd
Board Or Committee Approval	Yes (X)	BoardOrCommitteeApprovalInd
Severance Payment	false	SeverancePaymentInd
Supplemental Nonqual Rtr Plan	false	SupplementalNonqualRtrPlanInd
Equity Based Comp Arrngm	false	EquityBasedCompArrngmInd
Comp Based On Revenue Of Flng Org	false	CompBasedOnRevenueOfFlngOrgInd
Comp Bsd On Rev Related Orgs	false	CompBsdOnRevRelatedOrgsInd
Comp Bsd Net Earns Flng Org	false	CompBsdNetEarnsFlngOrgInd
Comp Bsd Net Earns Rltd Orgs	false	CompBsdNetEarnsRltdOrgsInd
Any Non Fixed Payments	false	AnyNonFixedPaymentsInd
Initial Contract Exception	false	InitialContractExceptionInd

Rltd Org Officer Trst Key Empl RltdOrgOfficerTrstKeyEmplGrp

Field	Value	IRS element (for citing)
Person	Alistair Dove	PersonNm
Title	CEO	TitleTxt
Base Compensation Filing Org	$230,000	BaseCompensationFilingOrgAmt
Compensation Based On Rltd Orgs	$0	CompensationBasedOnRltdOrgsAmt
Bonus Filing Organization	$0	BonusFilingOrganizationAmount
Bonus Related Organizations	$0	BonusRelatedOrganizationsAmt
Other Compensation Filing Org	$0	OtherCompensationFilingOrgAmt
Other Compensation Rltd Orgs	$0	OtherCompensationRltdOrgsAmt
Deferred Compensation Flng Org	$0	DeferredCompensationFlngOrgAmt
Deferred Comp Rltd Orgs	$0	DeferredCompRltdOrgsAmt
Nontaxable Benefits Filing Org	$0	NontaxableBenefitsFilingOrgAmt
Nontaxable Benefits Rltd Orgs	$0	NontaxableBenefitsRltdOrgsAmt
Total Compensation Filing Org	$230,000	TotalCompensationFilingOrgAmt
Total Compensation Rltd Orgs	$0	TotalCompensationRltdOrgsAmt
Comp Report Prior990 Filing Org	$0	CompReportPrior990FilingOrgAmt
Comp Report Prior990 Rltd Orgs	$0	CompReportPrior990RltdOrgsAmt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (11 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Form 990, Part VI, Line 1a	THE EXECUTIVE COMMITTEE SHALL CONSIST OF THE EXECUTIVE OFFICERS OF THE CORPORATION, OTHER THAN THE PRESIDENT AND/OR VICE PRESIDENT. ONE OR MORE TRUSTEES MAY BE DESIGNATED BY THE CHAIRPERSON AND APPROVED BY THE BOARD OF TRUSTEES TO SERVE ON EXECUTIVE COMMITTEE. THE EXECUTIVE COMMITTEE MAY ACT FOR THE BOARD OF TRUSTEES BETWEEN MEETINGS OF THE BOARD OF TRUSTEES AND SHALL REPORT ITS ACTIONS TO THE BOARD OF TRUSTEES. THE COMMITTEE SHALL MEET FROM TIME TO TIME, AS NECESSARY FOR THE PROPER MANAGEMENT OF THE AFFAIRS OF THE CORPORATION.
Form 990, Part VI, Line 18	PHOTOCOPIES OF RECENT FILINGS OF THE FORM 990 ARE AVAILABLE UPON REQUEST AT THE ORGANIZATION'S ADMINISTRATIVE OFFICE. IN ADDITION, RECENT FILINGS OF THE FORM 990 ARE AVAILABLE ONLINE AT WWW.GUIDESTAR.ORG.
Form 990, Part VI, Line 6 Classes of members or stockholders	ANY PERSON, BUSINESS, OR FOUNDATION PAYING THE REQUISITE DUES SHALL BE ELIGIBLE FOR MEMBERSHIP IN THE CORPORATION. THE TRUSTEES SHALL FROM TIME TO TIME DETERMINE THE AMOUNT OF ANNUAL DUES PAYABLE BY EACH CLASS OF MEMBERS.
Form 990, Part VI, Line 7a Members or stockholders electing members of governing body	THE TRUSTEES OF THE CORPORATION SHALL BE NO MORE THAN 33 MEMBERS, BUT NOT LESS THAN 10 MEMBERS. TRUSTEES SHALL BE ELECTED BY MEMBERS AT THE ANNUAL MEETING TO SERVE FOR THREE YEARS.
Form 990, Part VI, Line 11b Review of form 990 by governing body	The return was prepared by an independent accounting firm with assistance and oversight by management. Upon completion, the return was reviewed by management and discussed with the Finance Committee. Management performed a detailed review prior to filing the return.
Form 990, Part VI, Line 12c Conflict of interest policy	UPON INDUCTION INTO THE BOARD OF DIRECTORS, NEW DIRECTORS GO THROUGH AN ORIENTATION IN WHICH THE CONFLICT OF INTEREST POLICY IS EXPLAINED. THE POLICY REQUIRES THE RECUSAL OF A BOARD MEMBER ON DISCUSSIONS OR VOTES WITH WHICH HE OR SHE MAY HAVE A CONFLICT. THE POLICY GENERALLY WORKS ON THE HONOR SYSTEM; HOWEVER, BEFORE MAJOR DECISIONS, THE POLICY IS DISCUSSED WITHIN CONTEXT OF THE DECISION.
Form 990, Part VI, Line 15a Process to establish compensation of top management official	The President, Finance Committee, and Board review and approve officers, directors, and key employees compensation arrangements. The Finance Committee and Board of Directors approves the Executive Director's compensation package. The American Alliance of Museum's (AAM) salary study is the industry-specific guide used to estimate compensation for these employees. These procedures are applied to all positions, and the aforementioned salary survey is the benchmark for all employees compensation target. THE ORGANIZATION HAS NO OTHER OFFICERS OR KEY EMPLOYEES TO WHOM THIS PROCESS WOULD APPLY.
Form 990, Part VI, Line 15b Process to establish compensation of other employees	The President, Finance Committee, and Board review and approve officers, directors, and key employees compensation arrangements. The Finance Committee and Board of Directors approves the Executive Director's compensation package. The American Alliance of Museum's (AAM) salary study is the industry-specific guide used to estimate compensation for these employees. These procedures are applied to all positions, and the aforementioned salary survey is the benchmark for all employees compensation target. THE ORGANIZATION HAS NO OTHER OFFICERS OR KEY EMPLOYEES TO WHOM THIS PROCESS WOULD APPLY.
Form 990, Part VI, Line 19 Required documents available to the public	PHOTOCOPIES OF THE ORGANIZATION'S GOVERNING DOCUMENTS, FINANCIAL STATEMENTS, AND CONFLICT OF INTEREST POLICY ARE AVAILABLE UPON REQUEST AT THE ORGANIZATION'S ADMINISTRATIVE OFFICE.
Form 990, Part IX, Line 11g Other Fees	PROFESSIONAL FEES - Total Expense: 657997, Program Service Expense: 149388, Management and General Expenses: 61798, Fundraising Expenses: 446811;
Form 990, Part XII, Line 2c Change of oversight process or selection process	THE PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.