HALCYON FOUNDATION: Form 990, tax year 2023

View the entire original 990 at ProPublica ↗

Organization: HALCYON FOUNDATION (EIN 13-6059784)
Tax period: 2023-01-01 to 2023-12-31
Filed: 2024-11-15
IRS object ID: 202413209349311141
Schema version: 2023v5.1
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 D
Schedule F
Schedule G
Schedule O
Schedule R

Return header ReturnHeader

Field	Value	IRS element (for citing)
Return	2024-11-15T11:55:15-06:00	ReturnTs
Tax Period End	2023-12-31	TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

Field	Value	IRS element (for citing)
Preparer Firm EIN	352123203	PreparerFirmEIN

Preparer Firm Name PreparerFirmName

Field	Value	IRS element (for citing)
Business Name Line1	KSM BUSINESS SERVICES INC	BusinessNameLine1Txt

Preparer US Address PreparerUSAddress

Field	Value	IRS element (for citing)
Address Line1	PO BOX 40857	AddressLine1Txt
City	INDIANAPOLIS	CityNm
State Abbreviation	IN	StateAbbreviationCd
ZIP	46240	ZIPCd

Field	Value	IRS element (for citing)
Return Type	990	ReturnTypeCd
Tax Period Begin	2023-01-01	TaxPeriodBeginDt

Filer Filer

Field	Value	IRS element (for citing)
EIN	136059784	EIN

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	HALCYON FOUNDATION	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Business Name Control	HALC	BusinessNameControlTxt
Phone	2123700198	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	515 MADISON AVE ROOM 725	AddressLine1Txt
City	NEW YORK	CityNm
State Abbreviation	NY	StateAbbreviationCd
ZIP	10022	ZIPCd

Business Officer BusinessOfficerGrp

Field	Value	IRS element (for citing)
Person	LINDA HACKETT MUNSON	PersonNm
Person Title	PRESIDENT	PersonTitleTxt
Phone	2123700198	PhoneNum
Signature	2024-11-14	SignatureDt
Discuss With Paid Preparer	Yes (1)	DiscussWithPaidPreparerInd

Field	Value	IRS element (for citing)
IRS Responsible Prty Info Curr	Yes (1)	IRSResponsiblePrtyInfoCurrInd

Preparer Person PreparerPersonGrp

Field	Value	IRS element (for citing)
Preparer Person	CASSE TATE	PreparerPersonNm
PTIN	P01271193	PTIN
Phone	3175802000	PhoneNum
Preparation	2024-11-14	PreparationDt

Field	Value	IRS element (for citing)
Tax	2023	TaxYr
Build TS	2024-10-15 13:58:12Z	BuildTS

Form 990 IRS990

Field	Value	IRS element (for citing)
Principal Officer	LINDA HACKETT MUNSON	PrincipalOfficerNm

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	515 MADISON AVE ROOM 725	AddressLine1Txt
City	NEW YORK	CityNm
State Abbreviation	NY	StateAbbreviationCd
ZIP	10022	ZIPCd

Field	Value	IRS element (for citing)
Gross Receipts	$2,586,426	GrossReceiptsAmt
Group Return For Affiliates	0	GroupReturnForAffiliatesInd
Organization501c3	Yes (X)	Organization501c3Ind
Website Address	N/A	WebsiteAddressTxt
Type Of Organization Corp	Yes (X)	TypeOfOrganizationCorpInd
Formation	1957	FormationYr
Legal Domicile State	NY	LegalDomicileStateCd
Activity Or Mission	TO SUPPORT THE AMERICAN MUSEUM IN BRITAIN THROUGH FUNDRAISING ACTIVITIES IN THE UNITED STATES.	ActivityOrMissionDesc
Voting Members Governing Body	9	VotingMembersGoverningBodyCnt
Voting Members Independent	9	VotingMembersIndependentCnt
Total Employee	1	TotalEmployeeCnt
Total Volunteers	9	TotalVolunteersCnt
Total Gross UBI	$0	TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm	$0	NetUnrelatedBusTxblIncmAmt
PY Contributions Grants	$214,302	PYContributionsGrantsAmt
CY Contributions Grants	$315,325	CYContributionsGrantsAmt
PY Program Service Revenue	$0	PYProgramServiceRevenueAmt
CY Program Service Revenue	$0	CYProgramServiceRevenueAmt
PY Investment Income	$280,787	PYInvestmentIncomeAmt
CY Investment Income	$346,382	CYInvestmentIncomeAmt
PY Other Revenue	$25,750	PYOtherRevenueAmt
CY Other Revenue	$23,250	CYOtherRevenueAmt
PY Total Revenue	$520,839	PYTotalRevenueAmt
CY Total Revenue	$684,957	CYTotalRevenueAmt
PY Grants And Similar Paid	$299,150	PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid	$644,401	CYGrantsAndSimilarPaidAmt
PY Benefits Paid To Members	$0	PYBenefitsPaidToMembersAmt
CY Benefits Paid To Members	$0	CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid	$83,447	PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid	$84,601	CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns	$0	PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns	$0	CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense	$15,065	CYTotalFundraisingExpenseAmt
PY Other Expenses	$305,138	PYOtherExpensesAmt
CY Other Expenses	$253,549	CYOtherExpensesAmt
PY Total Expenses	$687,735	PYTotalExpensesAmt
CY Total Expenses	$982,551	CYTotalExpensesAmt
PY Revenues Less Expenses	-$166,896	PYRevenuesLessExpensesAmt
CY Revenues Less Expenses	-$297,594	CYRevenuesLessExpensesAmt
Total Assets BOY	$6,001,183	TotalAssetsBOYAmt
Total Assets EOY	$7,229,662	TotalAssetsEOYAmt
Total Liabilities BOY	$368,464	TotalLiabilitiesBOYAmt
Total Liabilities EOY	$316,018	TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY	$5,632,719	NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY	$6,913,644	NetAssetsOrFundBalancesEOYAmt
Mission	TO SUPPORT THE AMERICAN MUSEUM IN BRITAIN THROUGH FUNDRAISING ACTIVITIES IN THE UNITED STATES.	MissionDesc
Significant New Program Srvc	0	SignificantNewProgramSrvcInd
Significant Change	0	SignificantChangeInd
Expense	$701,151	ExpenseAmt
Grant	$644,401	GrantAmt
Desc	SUPPORT OF AMERICAN MUSEUM IN BRITAIN	Desc
Total Program Service Expenses	$701,151	TotalProgramServiceExpensesAmt
Described In Section501c3	Yes (1)	DescribedInSection501c3Ind
Schedule B Required	Yes (1)	ScheduleBRequiredInd
Political Campaign Acty	0	PoliticalCampaignActyInd
Lobbying Activities	0	LobbyingActivitiesInd
Subject To Proxy Tax	0	SubjectToProxyTaxInd
Donor Advised Fund	0	DonorAdvisedFundInd
Conservation Easements	0	ConservationEasementsInd
Collections Of Art	0	CollectionsOfArtInd
Credit Counseling	0	CreditCounselingInd
Donor Rstr Or Quasi Endowments	0	DonorRstrOrQuasiEndowmentsInd
Report Land Building Equipment	Yes (1)	ReportLandBuildingEquipmentInd
Report Investments Other Sec	0	ReportInvestmentsOtherSecInd
Report Program Related Invst	0	ReportProgramRelatedInvstInd
Report Other Assets	0	ReportOtherAssetsInd
Report Other Liabilities	Yes (1)	ReportOtherLiabilitiesInd
Include FIN48 Footnote	Yes (1)	IncludeFIN48FootnoteInd
Independent Audit Fincl Stmt	Yes (1)	IndependentAuditFinclStmtInd
Consolidated Audit Fincl Stmt	0	ConsolidatedAuditFinclStmtInd
School Operating	0	SchoolOperatingInd
Foreign Office	0	ForeignOfficeInd
Foreign Activities	Yes (1)	ForeignActivitiesInd
More Than5000 K To Org	Yes (1)	MoreThan5000KToOrgInd
More Than5000 K To Individuals	0	MoreThan5000KToIndividualsInd
Professional Fundraising	0	ProfessionalFundraisingInd
Fundraising Activities	Yes (1)	FundraisingActivitiesInd
Gaming Activities	0	GamingActivitiesInd
Operate Hospital	0	OperateHospitalInd
Grants To Organizations	0	GrantsToOrganizationsInd
Grants To Individuals	0	GrantsToIndividualsInd
Schedule J Required	0	ScheduleJRequiredInd
Tax Exempt Bonds	0	TaxExemptBondsInd
Engaged In Excess Benefit Trans	0	EngagedInExcessBenefitTransInd
PY Excess Benefit Trans	0	PYExcessBenefitTransInd
Loan Outstanding	0	LoanOutstandingInd
Grant To Related Person	0	GrantToRelatedPersonInd
Business Rln With Org Mem	0	BusinessRlnWithOrgMemInd
Business Rln With Fam Mem	0	BusinessRlnWithFamMemInd
Business Rln With35 Ctrl Ent	0	BusinessRlnWith35CtrlEntInd
Deductible Non Cash Contri	0	DeductibleNonCashContriInd
Deductible Art Contribution	0	DeductibleArtContributionInd
Terminate Operations	0	TerminateOperationsInd
Partial Liquidation	0	PartialLiquidationInd
Disregarded Entity	0	DisregardedEntityInd
Related Entity	Yes (1)	RelatedEntityInd
Related Organization Ctrl Ent	0	RelatedOrganizationCtrlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org	0	TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp	0	ActivitiesConductedPrtshpInd
Schedule O Required	Yes (1)	ScheduleORequiredInd
IRP Document	4	IRPDocumentCnt
IRP Document W2 G	0	IRPDocumentW2GCnt
Backup Wthld Compliance	Yes (1)	BackupWthldComplianceInd
Employee	1	EmployeeCnt
Employment Tax Returns Filed	Yes (1)	EmploymentTaxReturnsFiledInd
Unrelated Bus Incm Over Limit	0	UnrelatedBusIncmOverLimitInd
Foreign Financial Account	0	ForeignFinancialAccountInd
Prohibited Tax Shelter Trans	0	ProhibitedTaxShelterTransInd
Taxable Party Notification	0	TaxablePartyNotificationInd
Nondeductible Contributions	0	NondeductibleContributionsInd
Quid Pro Quo Contributions	Yes (1)	QuidProQuoContributionsInd
Quid Pro Quo Contri Discl	Yes (1)	QuidProQuoContriDisclInd
Form8282 Property Disposed Of	0	Form8282PropertyDisposedOfInd
Rcv Fnds To Pay Prsnl Bnft Cntrct	0	RcvFndsToPayPrsnlBnftCntrctInd
Pay Premiums Prsnl Bnft Cntrct	0	PayPremiumsPrsnlBnftCntrctInd
Indoor Tanning Services	0	IndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht Pymt	0	SubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst Inc	0	SubjectToExcsTaxNetInvstIncInd
Info In Schedule O Part VI	Yes (X)	InfoInScheduleOPartVIInd
Governing Body Voting Members	9	GoverningBodyVotingMembersCnt
Independent Voting Member	9	IndependentVotingMemberCnt
Family Or Business Rln	0	FamilyOrBusinessRlnInd
Delegation Of Mgmt Duties	0	DelegationOfMgmtDutiesInd
Change To Org Documents	0	ChangeToOrgDocumentsInd
Material Diversion Or Misuse	0	MaterialDiversionOrMisuseInd
Members Or Stockholders	0	MembersOrStockholdersInd
Election Of Board Members	0	ElectionOfBoardMembersInd
Decisions Subject To Approva	0	DecisionsSubjectToApprovaInd
Minutes Of Governing Body	Yes (1)	MinutesOfGoverningBodyInd
Minutes Of Committees	Yes (1)	MinutesOfCommitteesInd
Officer Mailing Address	0	OfficerMailingAddressInd
Local Chapters	0	LocalChaptersInd
Form990 Provided To Gvrn Body	Yes (1)	Form990ProvidedToGvrnBodyInd
Conflict Of Interest Policy	Yes (1)	ConflictOfInterestPolicyInd
Annual Disclosure Covered Prsn	0	AnnualDisclosureCoveredPrsnInd
Regular Monitoring Enfrc	Yes (1)	RegularMonitoringEnfrcInd
Whistleblower Policy	0	WhistleblowerPolicyInd
Document Retention Policy	0	DocumentRetentionPolicyInd
Compensation Process CEO	Yes (1)	CompensationProcessCEOInd
Compensation Process Other	0	CompensationProcessOtherInd
Investment In Joint Venture	0	InvestmentInJointVentureInd
States Where Copy Of Return Is Fld	NY	StatesWhereCopyOfReturnIsFldCd
Upon Request	Yes (X)	UponRequestInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	MARK E HARANZO	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Phone	2123700198	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	515 MADISON AVE ROOM 725	AddressLine1Txt
City	NEW YORK	CityNm
State Abbreviation	NY	StateAbbreviationCd
ZIP	10022	ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (10 entries)

TitleTitleTxt	Average Hours Per WeekAverageHoursPerWeekRt	Individual Trustee Or DirectorIndividualTrusteeOrDirectorInd	OfficerOfficerInd	Reportable Comp From OrgReportableCompFromOrgAmt	Reportable Comp From Rltd OrgReportableCompFromRltdOrgAmt	Other CompensationOtherCompensationAmt
LINDA HACKETT MUNSON
PRESIDENT	5.00	Yes (X)	Yes (X)	$0	$0	$0
MARK E HARANZO
SECRETARY/TREASURER	5.00	Yes (X)	Yes (X)	$0	$0	$0
MARY CONRAD
VICE PRESIDENT	0.50	Yes (X)		$0	$0	$0
CAROLYN MACDONALD
VICE PRESIDENT	0.50	Yes (X)		$0	$0	$0
BARBARA SLIFKA
VICE PRESIDENT	0.50	Yes (X)		$0	$0	$0
JANE GLEASON
BOARD MEMBER	0.50	Yes (X)		$0	$0	$0
DR BRUCE HORTEN
BOARD MEMBER	0.50	Yes (X)		$0	$0	$0
PAULINE C METCALF
BOARD MEMBER	0.50	Yes (X)		$0	$0	$0
LESLIE HOOPES
BOARD MEMBER	0.50	Yes (X)		$0	$0	$0
KATHERINE BURSACK
ASSISTANT SECRETARY	20.00		Yes (X)	$80,104	$0	$0

Field	Value	IRS element (for citing)
Total Reportable Comp From Org	$80,104	TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org	$0	TotReportableCompRltdOrgAmt
Total Other Compensation	$0	TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K	0	IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed	0	FormerOfcrEmployeesListedInd
Total Comp Greater Than150 K	0	TotalCompGreaterThan150KInd
Compensation From Other Srcs	0	CompensationFromOtherSrcsInd
Cntrct Rcvd Greater Than100 K	0	CntrctRcvdGreaterThan100KCnt
Membership Dues	$160	MembershipDuesAmt
Fundraising	$15,699	FundraisingAmt
All Other Contributions	$299,466	AllOtherContributionsAmt
Total Contributions	$315,325	TotalContributionsAmt

Investment Income InvestmentIncomeGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$83,184	TotalRevenueColumnAmt
Exclusion	$83,184	ExclusionAmt

Gross Rents GrossRentsGrp

Field	Value	IRS element (for citing)
Real	$23,250	RealAmt

Less Rental Expenses LessRentalExpensesGrp

Field	Value	IRS element (for citing)
Real	$0	RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Real	$23,250	RealAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$23,250	TotalRevenueColumnAmt
Exclusion	$23,250	ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

Field	Value	IRS element (for citing)
Securities	$2,095,373	SecuritiesAmt

Less Cost Oth Basis Sales Expnss LessCostOthBasisSalesExpnssGrp

Field	Value	IRS element (for citing)
Securities	$1,832,175	SecuritiesAmt

Gain Or Loss GainOrLossGrp

Field	Value	IRS element (for citing)
Securities	$263,198	SecuritiesAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$263,198	TotalRevenueColumnAmt
Exclusion	$263,198	ExclusionAmt

Field	Value	IRS element (for citing)
Fundraising Gross Income	$69,294	FundraisingGrossIncomeAmt
Contri Rpt Fundraising Event	$15,699	ContriRptFundraisingEventAmt
Fundraising Direct Expenses	$69,294	FundraisingDirectExpensesAmt

Net Incm From Fundraising Evt NetIncmFromFundraisingEvtGrp

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

Total Revenue TotalRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$684,957	TotalRevenueColumnAmt
Related Or Exempt Func Income	$0	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$0	UnrelatedBusinessRevenueAmt
Exclusion	$369,632	ExclusionAmt

Foreign Grants ForeignGrantsGrp

Field	Value	IRS element (for citing)
Total	$644,401	TotalAmt
Program Services	$644,401	ProgramServicesAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

Field	Value	IRS element (for citing)
Total	$77,877	TotalAmt
Program Services	$19,469	ProgramServicesAmt
Management And General	$54,514	ManagementAndGeneralAmt
Fundraising	$3,894	FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

Field	Value	IRS element (for citing)
Total	$2,500	TotalAmt
Program Services	$625	ProgramServicesAmt
Management And General	$1,750	ManagementAndGeneralAmt
Fundraising	$125	FundraisingAmt

Payroll Taxes PayrollTaxesGrp

Field	Value	IRS element (for citing)
Total	$4,224	TotalAmt
Program Services	$1,056	ProgramServicesAmt
Management And General	$2,957	ManagementAndGeneralAmt
Fundraising	$211	FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

Field	Value	IRS element (for citing)
Total	$92,554	TotalAmt
Management And General	$92,554	ManagementAndGeneralAmt

Fees For Services Accounting FeesForServicesAccountingGrp

Field	Value	IRS element (for citing)
Total	$41,400	TotalAmt
Management And General	$41,400	ManagementAndGeneralAmt

Fees For Srvc Invst Mgmnt Fees FeesForSrvcInvstMgmntFeesGrp

Field	Value	IRS element (for citing)
Total	$39,732	TotalAmt
Management And General	$39,732	ManagementAndGeneralAmt

Fees For Services Other FeesForServicesOtherGrp

Field	Value	IRS element (for citing)
Total	$2,961	TotalAmt
Management And General	$2,961	ManagementAndGeneralAmt

Office Expenses OfficeExpensesGrp

Field	Value	IRS element (for citing)
Total	$14,664	TotalAmt
Program Services	$4,399	ProgramServicesAmt
Management And General	$5,866	ManagementAndGeneralAmt
Fundraising	$4,399	FundraisingAmt

Information Technology InformationTechnologyGrp

Field	Value	IRS element (for citing)
Total	$2,759	TotalAmt
Program Services	$828	ProgramServicesAmt
Management And General	$1,103	ManagementAndGeneralAmt
Fundraising	$828	FundraisingAmt

Occupancy OccupancyGrp

Field	Value	IRS element (for citing)
Total	$42,790	TotalAmt
Program Services	$25,674	ProgramServicesAmt
Management And General	$14,976	ManagementAndGeneralAmt
Fundraising	$2,140	FundraisingAmt

Travel TravelGrp

Field	Value	IRS element (for citing)
Total	$7,264	TotalAmt
Program Services	$2,179	ProgramServicesAmt
Management And General	$2,906	ManagementAndGeneralAmt
Fundraising	$2,179	FundraisingAmt

Depreciation Depletion DepreciationDepletionGrp

Field	Value	IRS element (for citing)
Total	$600	TotalAmt
Program Services	$180	ProgramServicesAmt
Management And General	$240	ManagementAndGeneralAmt
Fundraising	$180	FundraisingAmt

Insurance InsuranceGrp

Field	Value	IRS element (for citing)
Total	$6,156	TotalAmt
Program Services	$1,539	ProgramServicesAmt
Management And General	$4,309	ManagementAndGeneralAmt
Fundraising	$308	FundraisingAmt

Other Expenses OtherExpensesGrp

Field	Value	IRS element (for citing)
Desc	POSTAGE AND SHIPPING	Desc
Total	$2,669	TotalAmt
Program Services	$801	ProgramServicesAmt
Management And General	$1,067	ManagementAndGeneralAmt
Fundraising	$801	FundraisingAmt

Total Functional Expenses TotalFunctionalExpensesGrp

Field	Value	IRS element (for citing)
Total	$982,551	TotalAmt
Program Services	$701,151	ProgramServicesAmt
Management And General	$266,335	ManagementAndGeneralAmt
Fundraising	$15,065	FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

Field	Value	IRS element (for citing)
BOY	$203,959	BOYAmt
EOY	$101,184	EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

Field	Value	IRS element (for citing)
BOY	$113,151	BOYAmt
EOY	$112,247	EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$30,000	BOYAmt
EOY	$20,000	EOYAmt

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

Field	Value	IRS element (for citing)
BOY	$11,041	BOYAmt
EOY	$7,670	EOYAmt

Field	Value	IRS element (for citing)
Land Bldg Equip Cost Or Other Bss	$8,673	LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec	$8,624	LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

Field	Value	IRS element (for citing)
BOY	$649	BOYAmt
EOY	$49	EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

Field	Value	IRS element (for citing)
BOY	$5,304,823	BOYAmt
EOY	$6,686,826	EOYAmt

Other Assets Total OtherAssetsTotalGrp

Field	Value	IRS element (for citing)
BOY	$337,560	BOYAmt
EOY	$301,686	EOYAmt

Total Assets TotalAssetsGrp

Field	Value	IRS element (for citing)
BOY	$6,001,183	BOYAmt
EOY	$7,229,662	EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

Field	Value	IRS element (for citing)
BOY	$25,730	BOYAmt
EOY	$5,065	EOYAmt

Other Liabilities OtherLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$342,734	BOYAmt
EOY	$310,953	EOYAmt

Total Liabilities TotalLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$368,464	BOYAmt
EOY	$316,018	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	$5,602,719	BOYAmt
EOY	$6,893,644	EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$30,000	BOYAmt
EOY	$20,000	EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$5,632,719	BOYAmt
EOY	$6,913,644	EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$6,001,183	BOYAmt
EOY	$7,229,662	EOYAmt

Field	Value	IRS element (for citing)
Reconcilation Revenue Expnss	-$297,594	ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst	$1,578,519	NetUnrlzdGainsLossesInvstAmt
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	0	AccountantCompileOrReviewInd
FS Audited	Yes (1)	FSAuditedInd

FS Audited Basis FSAuditedBasisGrp

Field	Value	IRS element (for citing)
Separate Basis Fincl Stmt	Yes (X)	SeparateBasisFinclStmtInd

Field	Value	IRS element (for citing)
Audit Committee	0	AuditCommitteeInd
Federal Grant Audit Required	0	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	$413,108	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$580,267	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$281,442	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$214,302	CurrentTaxYearMinus1YearAmt
Current Tax Year	$315,325	CurrentTaxYearAmt
Total	$1,804,444	TotalAmt

Total Calendar Year170 TotalCalendarYear170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$413,108	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$580,267	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$281,442	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$214,302	CurrentTaxYearMinus1YearAmt
Current Tax Year	$315,325	CurrentTaxYearAmt
Total	$1,804,444	TotalAmt

Field	Value	IRS element (for citing)
Substantial Contributors Tot	$700,538	SubstantialContributorsTotAmt
Public Support Total170	$1,103,906	PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$62,131	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$54,538	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$63,235	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$83,138	CurrentTaxYearMinus1YearAmt
Current Tax Year	$106,434	CurrentTaxYearAmt
Total	$369,476	TotalAmt

Field	Value	IRS element (for citing)
Total Support	$2,173,920	TotalSupportAmt
Public Support CY170	0.50780	PublicSupportCY170Pct
Public Support PY170	0.47830	PublicSupportPY170Pct
Thirty Thr Pct Suprt Tests CY170	Yes (X)	ThirtyThrPctSuprtTestsCY170Ind

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 D IRS990ScheduleD

Equipment EquipmentGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$8,673	OtherCostOrOtherBasisAmt
Depreciation	$8,624	DepreciationAmt
Book Value	$49	BookValueAmt

Field	Value	IRS element (for citing)
Total Book Value Land Buildings	$49	TotalBookValueLandBuildingsAmt

Other Liabilities Org OtherLiabilitiesOrgGrp (2 entries)

DescDesc	AmtAmt
RIGHT OF USE LIABILITY - CURRENT	$33,428
RIGHT OF USE LIABILITY - LONG TERM	$277,525

Field	Value	IRS element (for citing)
Total Liability	$310,953	TotalLiabilityAmt
Footnote Text	Yes (X)	FootnoteTextInd
Total Rev Etc Audited Fincl Stmt	$2,431,869	TotalRevEtcAuditedFinclStmtAmt
Net Unrealized Gains Invst	$1,578,519	NetUnrealizedGainsInvstAmt
Donated Services And Use Fclts	$138,831	DonatedServicesAndUseFcltsAmt
Other Revenue	$69,294	OtherRevenueAmt
Revenue Not Reported	$1,786,644	RevenueNotReportedAmt
Revenue Subtotal	$645,225	RevenueSubtotalAmt
Investment Expenses Not Incld	$39,732	InvestmentExpensesNotIncldAmt
Revenue Not Reported Fincl Stmt	$39,732	RevenueNotReportedFinclStmtAmt
Total Revenue Per Form990	$684,957	TotalRevenuePerForm990Amt
Tot Expns Etc Audited Fincl Stmt	$1,150,944	TotExpnsEtcAuditedFinclStmtAmt
Donated Services Use Fclts	$138,831	DonatedServicesUseFcltsAmt
Other Expenses Included	$69,294	OtherExpensesIncludedAmt
Expenses Not Reported	$208,125	ExpensesNotReportedAmt
Expenses Subtotal	$942,819	ExpensesSubtotalAmt
Investment Expenses Not Incld2	$39,732	InvestmentExpensesNotIncld2Amt
Expenses Not Rpt Fincl Stmt	$39,732	ExpensesNotRptFinclStmtAmt
Total Expenses Per Form990	$982,551	TotalExpensesPerForm990Amt

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
PART X, LINE 2:	THE FOUNDATION IS EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE, THOUGH IT IS SUBJECT TO TAX ON INCOME UNRELATED TO ITS EXEMPT PURPOSE, UNLESS THAT INCOME IS OTHERWISE EXCLUDED BY THE INTERNAL REVENUE CODE. IN ADDITION, THE FOUNDATION HAS BEEN DETERMINED BY THE INTERNAL REVENUE SERVICE NOT TO BE A PRIVATE FOUNDATION WITHIN THE MEANING OF SECTION 509(A) OF THE INTERNAL REVENUE CODE. THERE WAS NO UNRELATED BUSINESS INCOME TAX FOR 2023 AND 2022. THE FOUNDATION FILES U.S. FEDERAL AND NEW YORK INFORMATION RETURNS. THE FOUNDATION IS NO LONGER SUBJECT TO U.S. FEDERAL AND STATE INCOME TAX EXAMINATIONS BY TAX AUTHORITIES FOR YEARS BEFORE 2020. MANAGEMENT BELIEVES THAT THE ORGANIZATION'S INCOME TAX FILING POSITIONS WILL BE SUSTAINED ON AUDIT AND DOES NOT ANTICIPATE ANY ADJUSTMENTS THAT WILL RESULT IN A MATERIAL CHANGE.
PART XI, LINE 2D - OTHER ADJUSTMENTS:	SPECIAL EVENT 69,294.
PART XII, LINE 2D - OTHER ADJUSTMENTS:	SPECIAL EVENT 69,294.

Schedule F IRS990ScheduleF

Field	Value	IRS element (for citing)
Grant Records Maintained	Yes (1)	GrantRecordsMaintainedInd

Account Activities Outside US AccountActivitiesOutsideUSGrp

Field	Value	IRS element (for citing)
Region	EUROPE (INCLUDING ICELAND & GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM	RegionTxt
Offices	0	OfficesCnt
Employee	0	EmployeeCnt
Type Of Activities Conducted	GRANTS TO RECIPIENTS LOCATED IN THE REGION	TypeOfActivitiesConductedTxt
Specific Services Provided	GRANTMAKING	SpecificServicesProvidedTxt
Region Total Expenditures	$644,401	RegionTotalExpendituresAmt

Field	Value	IRS element (for citing)
Subtotal Offices	0	SubtotalOfficesCnt
Subtotal Employees	0	SubtotalEmployeesCnt
Continuation Total Office	0	ContinuationTotalOfficeCnt
Continuation Total Employee	0	ContinuationTotalEmployeeCnt
Total Office	0	TotalOfficeCnt
Total Employee	0	TotalEmployeeCnt
Subtotal Spent	$644,401	SubtotalSpentAmt
Continuation Spent	$0	ContinuationSpentAmt
Total Spent	$644,401	TotalSpentAmt

Grants To Org Outside US GrantsToOrgOutsideUSGrp

Field	Value	IRS element (for citing)
Region	EUROPE	RegionTxt
Purpose Of Grant	TO SUPPORT THE AMERICAN MUSEUM IN BRITAIN.	PurposeOfGrantTxt
Cash Grant	$644,401	CashGrantAmt
Manner Of Cash Disbursement	WIRE TRANSFER/CHECK	MannerOfCashDisbursementTxt
Non Cash Assistance	$0	NonCashAssistanceAmt

Field	Value	IRS element (for citing)
Transfer To Foreign Corp	0	TransferToForeignCorpInd
Interest In Foreign Trust	0	InterestInForeignTrustInd
Foreign Corp Ownership	0	ForeignCorpOwnershipInd
Passive Foreign Investmest Co	0	PassiveForeignInvestmestCoInd
Foreign Partnership	0	ForeignPartnershipInd
Boycott Countries	0	BoycottCountriesInd

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	PART I, LINE 2:	FormAndLineReferenceDesc
Explanation	GRANTS ARE APPROVED AND MONITORED BY THE BOARD.	ExplanationTxt

Schedule G IRS990ScheduleG

Fundraising Event Information FundraisingEventInformationGrp

Field	Value	IRS element (for citing)
Event1	THEATER SHOWS	Event1Nm
Gross Receipts Event1	$84,993	GrossReceiptsEvent1Amt
Charitable Contri Event1	$15,699	CharitableContriEvent1Amt
Gross Revenue Event1	$69,294	GrossRevenueEvent1Amt
Other Direct Expenses Event1	$69,294	OtherDirectExpensesEvent1Amt
Gross Receipts Total	$84,993	GrossReceiptsTotalAmt
Charitable Contributions Tot	$15,699	CharitableContributionsTotAmt
Gross Revenue Total Events	$69,294	GrossRevenueTotalEventsAmt
Oth Direct Expnss Total Events	$69,294	OthDirectExpnssTotalEventsAmt
Direct Expense Summary Events	$69,294	DirectExpenseSummaryEventsAmt
Net Income Summary	$0	NetIncomeSummaryAmt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (6 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
FORM 990, PART VI, SECTION B, LINE 11B	THE FORM 990 IS REVIEWED BY THE PRESIDENT, SENIOR VICE PRESIDENT, AND TREASURER, ALL THREE OF WHOM ARE MEMBERS OF THE BOARD OF DIRECTORS. FORM 990 IS PRESENTED TO THE ENTIRE BOARD AT ITS ANNUAL MEETING.
FORM 990, PART VI, SECTION B, LINE 12C	CONFLICT OF INTEREST POLICY IS REVIEWED AT THE ANNUAL MEETING.
FORM 990, PART VI, SECTION B, LINE 15A	ONE OF THE ORGANIZATION'S OFFICERS RECEIVES COMPENSATION. THIS AMOUNT IS DETERMINED BY A REVIEW OF SALARY DATA FOR COMPARABLE POSITIONS BY THE EXECUTIVE BOARD. THEIR DECISION IS DOCUMENTED AND THEN APPROVED BY THE PRESIDENT.
FORM 990, PART VI, SECTION C, LINE 19	THE ORGANIZATION'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST. ALL MARKETING AND FUNDRAISING MATERIALS PRODUCED BY THE ORGANIZATION DETAIL THIS FACT.
FORM 990, PART XII, LINE 2C	THERE HAS BEEN NO CHANGE TO THE AUDIT OVERSIGHT PROCESS FROM THE PRIOR YEAR.
FORM 990, PART IX, LINE 25	WHILE HALCYON PROVIDES FINANCIAL SUPPORT, IT IS ALSO A SUPPORTER OF THE AMERICAN MUSEUM IN BRITAIN THROUGH FACILITATION OF GIFTS DIRECTLY TO THE MUSEUM. THESE SUPPORT EFFORTS FURTHER THE EXEMPT PURPOSES OF THE MUSEUM.

Schedule R IRS990ScheduleR

Id Related Tax Exempt Org IdRelatedTaxExemptOrgGrp

Disregarded Entity Name DisregardedEntityName

Field	Value	IRS element (for citing)
Business Name Line1	AMERICAN MUSEUM IN BRITAIN	BusinessNameLine1Txt

Foreign Address ForeignAddress

Field	Value	IRS element (for citing)
Address Line1	CLAVERTON MANOR	AddressLine1Txt
City	BATH	CityNm
Province Or State	ENGLAND	ProvinceOrStateNm
Country	UK	CountryCd
Foreign Postal	BA27BD	ForeignPostalCd

Field	Value	IRS element (for citing)
EIN	270214011	EIN
Primary Activities	MUSEUM	PrimaryActivitiesTxt
Legal Domicile Foreign Country	UK	LegalDomicileForeignCountryCd
Exempt Code Section	501(C)(3)	ExemptCodeSectionTxt
Public Charity Status	LINE 10	PublicCharityStatusTxt

Direct Controlling Entity Name DirectControllingEntityName

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

Field	Value	IRS element (for citing)
Controlled Organization	Yes (1)	ControlledOrganizationInd

Field	Value	IRS element (for citing)
Receipt Of Int Annts Rnts Rylts	0	ReceiptOfIntAnntsRntsRyltsInd
Gift Grnt Or Cap Contri To Oth Org	Yes (1)	GiftGrntOrCapContriToOthOrgInd
Gift Grnt Cap Contri From Oth Org	0	GiftGrntCapContriFromOthOrgInd
Loans Or Guarantees To Other Org	0	LoansOrGuaranteesToOtherOrgInd
Loans Or Guarantees From Oth Org	0	LoansOrGuaranteesFromOthOrgInd
Div Related Organization	0	DivRelatedOrganizationInd
Asset Sale To Other Org	0	AssetSaleToOtherOrgInd
Asset Purchase From Other Org	0	AssetPurchaseFromOtherOrgInd
Asset Exchange	0	AssetExchangeInd
Rental Of Facilities To Oth Org	0	RentalOfFacilitiesToOthOrgInd
Rental Of Fclts From Oth Org	0	RentalOfFcltsFromOthOrgInd
Perform Of Services For Oth Org	0	PerformOfServicesForOthOrgInd
Perform Of Services By Other Org	0	PerformOfServicesByOtherOrgInd
Sharing Of Facilities	0	SharingOfFacilitiesInd
Paid Employees Sharing	0	PaidEmployeesSharingInd
Reimbursement Paid To Other Org	0	ReimbursementPaidToOtherOrgInd
Reimbursement Paid By Other Org	0	ReimbursementPaidByOtherOrgInd
Transfer To Other Org	0	TransferToOtherOrgInd
Transfer From Other Org	0	TransferFromOtherOrgInd

Transactions Related Org TransactionsRelatedOrgGrp

Other Organization Name OtherOrganizationName

Field	Value	IRS element (for citing)
Business Name Line1	AMERICAN MUSEUM IN BRITAIN	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Transaction Type	B	TransactionTypeTxt
Involved	$644,401	InvolvedAmt
Method Of Amount Determination	ACTUAL	MethodOfAmountDeterminationTxt