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Nonprofit · EIN 06-0811776

LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC

Tax-exempt · NORWALK, CT 06850

Financials

$5.4M$5.5M2023$9.8M$10M2024
Revenue Expenses · by fiscal year end
Financials of LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$9,788,543$9,980,393-$191,850$3,376,722$1,724,363$1,652,359
December 31, 2023990$5,374,948$5,476,625-$101,677$3,031,725$1,265,872$1,765,853
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$9,757,767
of which government grants
$9,578,910
Membership dues
$5,184
Program service revenue
$0
Investment income
$17,389
Net gain from sales of assets
-$57,117
Net income from fundraising events
$13,149
Net income from sales of inventory
$238
Other revenue
$13,387

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$109,200
Other salaries and wages
$125,462
Salaries, compensation and benefits (total)
$252,100
Professional fundraising fees
$0
Accounting fees
$75,619
Occupancy
$20,281
Travel
$2,211
Depreciation
$5,747
Program services (functional)
$9,684,869
Management and general (functional)
$248,790
Fundraising (functional)
$46,734

Balance sheet and other

Total assets, start of year
$3,031,725
Total assets, end of year
$3,376,722
Total liabilities, end of year
$1,724,363
Net assets, end of year
$1,652,359
Land, buildings and equipment
$5,765
Publicly traded securities
$888,477
Net assets without donor restrictions
$1,068,141
Net assets with donor restrictions
$584,218
Gross receipts
$9,862,830
Employees
4
Volunteers
70
Year formed
1966
State of legal domicile
CT

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2024, highest compensation first.

NameTitleHours / weekCompensation
SUSAN GILGOREEXECUTIVE DI
Trustee or director, Officer
40$109,200
PATSY BRESCIAVICE CHAIR O
Trustee or director, Officer
30$0
GAIL CANDLIN2ND VICE CHA
Trustee or director, Officer
10$0
DOUGLAS HEMPSTEADCHAIRMAN OF
Trustee or director, Officer
10$0
SHANNON O'TOOLE-GIANDURCOTREASURER
Trustee or director, Officer
10$0
LYNNE H BYINGTONSECRETARY
Trustee or director, Officer
5$0
KATHLEEN CUSTISTRUSTEE
Trustee or director
5$0
LAWRENCE F CAFERO JRTRUSTEE
Trustee or director
5$0
ERNEST DESROCHERSTRUSTEE
Trustee or director
5$0
MIMI FINDLAYTRUSTEE
Trustee or director
5$0
DAVID HEUVELMAN ESQTRUSTEE
Trustee or director
5$0
GAIL INGISTRUSTEE
Trustee or director
5$0
MIKLOS P KOLESZARTRUSTEE
Trustee or director
5$0
GARY LORUSSOTRUSTEE
Trustee or director
5$0
CHARLES NYSTROMTRUSTEE
Trustee or director
5$0
5 more people on this return
NameTitleHours / weekCompensation
KATHLEEN OLSENTRUSTEE
Trustee or director
5$0
VICTORIA VANDAMMTRUSTEE
Trustee or director
5$0
PAUL L VEEDER IITRUSTEE
Trustee or director
5$0
MARGARET WALKER ESQTRUSTEE
Trustee or director
5$0
DAVID G WESTMORELANDTRUSTEE
Trustee or director
5$0
990 for the year ended December 31, 2023: 22 people
NameTitleHours / weekCompensation
SUSAN GILGOREEXECUTIVE DI
Trustee or director, Officer
40$109,200
PATSY BRESCIAVICE CHAIR O
Trustee or director, Officer
30$0
DOUGLAS HEMPSTEADCHAIRMAN OF
Trustee or director, Officer
10$0
GAIL CANDLIN2ND VICE CHA
Trustee or director, Officer
10$0
SHANNON O'TOOLE-GIANDURCOTREASURER
Trustee or director, Officer
10$0
LAWRENCE F CAFERO JRTRUSTEE
Trustee or director
5$0
PORT DRAPERTRUSTEE
Trustee or director
5$0
TRUDY DUJARDINTRUSTEE
Trustee or director
5$0
MIMI FINDLAYTRUSTEE
Trustee or director
5$0
GARY LORUSSOTRUSTEE
Trustee or director
5$0
GAIL INGISTRUSTEE
Trustee or director
5$0
MIKLOS P KOLESZARTRUSTEE
Trustee or director
5$0
CHARLES NYSTROMTRUSTEE
Trustee or director
5$0
KIM M MORQUETRUSTEE
Trustee or director
5$0
VICTORIA VANDAMMTRUSTEE
Trustee or director
5$0
PAUL L VEEDER IITRUSTEE
Trustee or director
5$0
LYNNE H BYINGTONSECRETARY
Trustee or director, Officer
5$0
REV ROOSEVELT EWELLTRUSTEE
Trustee or director
5$0
KATHLEEN CUSTISTRUSTEE
Trustee or director
5$0
KATHLEEN OLSENTRUSTEE
Trustee or director
5$0
TATIANA MENDOZATRUSTEE
Trustee or director
5$0
PAMELA MURRINTRUSTEE
Trustee or director
5$0

Address and contacts

Address (IRS master file)
295 WEST AVE, NORWALK, CT 06850-4002
Principal officer (990 for 2024)
SHANNON O'TOOLE-GIANDURCO, 295 WEST AVENUE, NORWALK, CT 06850
Signed the 990
DOUGLAS HEMPSTEAD, CHAIRMAN OF BOARD
Phone
(203) 838-9799
Return prepared by
1SOURCE PARTNERS

Mission

THE MISSION OF THE LOCKWOOD-MATHEWS MANSION MUSEUM, A NATIONAL HISTORIC LANDMARK, IS TO PRESERVE AND RESTORE THIS UNIQUE ARCHITECTURAL TREASURE WHILE ENRICHING THE COMMUNITY...(CONTINUED ON SCHEDULE O)

990 for the year ended December 31, 2024

Program accomplishments

  • STUDENT PROGRAMS, EXHIBITS, LECTURES, PERFORMANCES, SCHOOL FIELD TRIPS, AND GUIDED TOURS FOR YOUTH AND ADULTS EDUCATE OUR COMMUNITIES AND CONNECT TODAY'S AUDIENCES WITH THIS NATIONAL HISTORIC LANDMARK.
    Expenses $167,898
  • A NATIONAL HISTORIC LANDMARK AND EDUCATIONAL CENTER FOR YOUTH AND ADULTS, THE LOCKWOOD-MATHEWS MANSION MUSEUM IS CONSIDERED ONE OF THE MOST SIGNIFICANT CIVIL WAR ERA STRUCTURES IN THE UNITED STATES. RESTORATION AND PRESERVATION OF ITS STRUCTURE AND COLLECTIONS IS PART OF THE LMMM MISSION AND PROVIDES AN OPPORTUNITY TO ILLUSTRATE LATE 19TH CENTURY HISTORY, ARCHITECTURE, AND THE ARTS IN A SAFE AND ENGAGING ENVIRONMENT.
    Expenses $9,516,971

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
06-0811776
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1991
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$3,376,722
Income (IRS master file)
$9,862,830

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$9,788,543$9,980,393$3,376,722XML
990December 2023$5,374,948$5,476,625$3,031,725XML
990December 2022$1,199,757$1,288,767$2,236,387IRS
990December 2021$1,108,220$772,478$2,114,650IRS
990December 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 06-0811776).

Questions about LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC

What is the EIN of LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC?
The employer identification number (EIN) of LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC is 06-0811776.
Is LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1991.
Are donations to LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC?
The 990 for the year ended December 31, 2024 names SHANNON O'TOOLE-GIANDURCO.
Who are the officers and directors of LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC?
The 990 for the year ended December 31, 2024 lists 20 people; 1 received compensation from the organization, the highest $109,200 (SUSAN GILGORE, EXECUTIVE DI).
How much revenue does LOCKWOOD-MATHEWS MANSION MUSEUM OF NORWALK INC have?
On its 990 for the year ended December 31, 2024 it reported revenue of $9,788,543, expenses of $9,980,393 and total assets of $3,376,722 at year end.

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