Civic Intelligence

Lockwood-Mathews Mansion Museum Of

EIN 06-0811776 • 501(c)3 • Norwalk, CT

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Profile

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)

295 West AvenueNorwalk, CT 06850

lockwoodmathewsmansion.com

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

80th percentile

0.51x

Higher debt load relative to assets than 80% of similar nonprofits.

501(c)3 • $5M-$10M nonprofits • Source year 2024

Liabilities / Revenue

53rd percentile

0.18x

Higher debt load relative to revenue than 53% of similar nonprofits.

501(c)3 • $5M-$10M nonprofits • Source year 2024

Net Margin

32nd percentile

-2.0%

Higher net margin than 32% of similar nonprofits.

501(c)3 • $5M-$10M nonprofits • Source year 2024

Top Officer Pay

41st percentile

$109,200

Higher top officer pay than 41% of similar nonprofits.

Top officer pay equals 1.1% of source-year revenue.

501(c)3 • $5M-$10M nonprofits • Source year 2024

Asset Growth

69th percentile

11%

Faster asset growth than 69% of similar nonprofits.

501(c)3 • $5M-$10M nonprofits • Annualized from 2023 to 2024

Revenue Growth

89th percentile

82%

Faster revenue growth than 89% of similar nonprofits.

501(c)3 • $5M-$10M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets80th percentile

Assets

Up

$3,376,722

Up $344,997 (+11%) from 2023

Liabilities

Up

$1,724,363

Up $458,491 (+36%) from 2023

Net Assets

Down

$1,652,359

Down $113,494 (-6.4%) from 2023

Operations
Liabilities / Revenue53rd percentileNet Margin32nd percentile

Revenue

Up

$9,788,543

Up $4,413,595 (+82%) from 2023

Expenses

Up

$9,980,393

Up $4,503,768 (+82%) from 2023

Net Income

Down

-$191,850

Down $90,173 (-89%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth69th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$4.0M$3.0M$2.0M$1.0M$0Assets 2010: $826,819Liabilities 2010: $101,888Net Assets 2010: $724,9312010Assets 2011: $725,490Liabilities 2011: $106,805Net Assets 2011: $618,6852011Assets 2012: $804,160Liabilities 2012: $189,712Net Assets 2012: $614,4482012Assets 2013: $1,663,026Liabilities 2013: $96,442Net Assets 2013: $1,566,5842013Assets 2014: $1,711,834Liabilities 2014: $29,318Net Assets 2014: $1,682,5162014Assets 2015: $1,602,899Liabilities 2015: $22,888Net Assets 2015: $1,580,0112015Assets 2016: $1,662,281Liabilities 2016: $30,933Net Assets 2016: $1,631,3482016Assets 2017: $1,726,085Liabilities 2017: $23,982Net Assets 2017: $1,702,1032017Assets 2018: $1,617,826Liabilities 2018: $29,856Net Assets 2018: $1,587,9702018Assets 2019: $1,552,809Liabilities 2019: $22,136Net Assets 2019: $1,530,6732019Assets 2020: $1,853,568Liabilities 2020: $165,789Net Assets 2020: $1,687,7792020Assets 2021: $2,114,650Liabilities 2021: $59,120Net Assets 2021: $2,055,5302021Assets 2022: $2,236,387Liabilities 2022: $445,531Net Assets 2022: $1,790,8562022Assets 2023: $3,031,725Liabilities 2023: $1,265,872Net Assets 2023: $1,765,8532023Assets 2024: $3,376,722Liabilities 2024: $1,724,363Net Assets 2024: $1,652,3592024

Highlighted filing

2024

Assets$3,376,722
Liabilities$1,724,363
Net Assets$1,652,359
Open 2024 Filing

Operations Trend

Revenue Growth89th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$10M$5.0M$0-$5.0MExpenses 2010: $355,9342010Expenses 2011: $473,0622011Expenses 2012: $420,1182012Revenue 2013: $1,482,871Expenses 2013: $530,735Net Income 2013: $952,1362013Revenue 2014: $522,215Expenses 2014: $405,907Net Income 2014: $116,3082014Revenue 2015: $416,219Expenses 2015: $433,448Net Income 2015: -$17,2292015Revenue 2016: $374,008Expenses 2016: $404,371Net Income 2016: -$30,3632016Revenue 2017: $406,522Expenses 2017: $400,264Net Income 2017: $6,2582017Revenue 2018: $402,459Expenses 2018: $419,845Net Income 2018: -$17,3862018Revenue 2019: $447,815Expenses 2019: $481,875Net Income 2019: -$34,0602019Revenue 2020: $893,134Expenses 2020: $784,277Net Income 2020: $108,8572020Revenue 2021: $1,108,220Expenses 2021: $772,478Net Income 2021: $335,7422021Revenue 2022: $1,199,757Expenses 2022: $1,288,767Net Income 2022: -$89,0102022Revenue 2023: $5,374,948Expenses 2023: $5,476,625Net Income 2023: -$101,6772023Revenue 2024: $9,788,543Expenses 2024: $9,980,393Net Income 2024: -$191,8502024

Highlighted filing

2024

Revenue$9,788,543
Expenses$9,980,393
Net Income-$191,850
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$3,376,722
Liabilities
$1,724,363
Net assets
$1,652,359
Revenue
$9,788,543
Expenses
$9,980,393
Net income
-$191,850
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$3.38$1.72$1.65$9.79$9.98$0.19
2023Detailed filing. Detailed filing data is available for this year.$3.03$1.27$1.77$5.37$5.48$0.10
2022Detailed filing. Detailed filing data is available for this year.$2.24$0.45$1.79$1.20$1.29$0.09
2021Detailed filing. Detailed filing data is available for this year.$2.11$0.06$2.06$1.11$0.77$0.34
2020Detailed filing. Detailed filing data is available for this year.$1.85$0.17$1.69$0.89$0.78$0.11
2019Detailed filing. Detailed filing data is available for this year.$1.55$0.02$1.53$0.45$0.48$0.03
2018Detailed filing. Detailed filing data is available for this year.$1.62$0.03$1.59$0.40$0.42$0.02
2017Detailed filing. Detailed filing data is available for this year.$1.73$0.02$1.70$0.41$0.40$0.01
2016Detailed filing. Detailed filing data is available for this year.$1.66$0.03$1.63$0.37$0.40$0.03
2015Detailed filing. Detailed filing data is available for this year.$1.60$0.02$1.58$0.42$0.43$0.02
2014Detailed filing. Detailed filing data is available for this year.$1.71$0.03$1.68$0.52$0.41$0.12
2013Detailed filing. Detailed filing data is available for this year.$1.66$0.10$1.57$1.48$0.53$0.95
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.80$0.19$0.61$0.42
2011Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.73$0.11$0.62$0.47
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.83$0.10$0.72$0.36
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Nov 14, 2025
Return Version
2024v5.0
Gross Receipts
$9,862,830
Mission and Program Overview

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 and the region through public programs that illustrate our nation's late 19th-century heritage and its significance to our own and future times.

The organization strives to preserve a landmark and interpret its 19th c. History through public programs that educate and engage our communities, while encouraging dialogue, critical thinking, and creativity.

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$1,293,539$1,683,792▲ $390,253
Investments in Publicly Traded Securities$903,034$888,477▼ $14,557
Savings and Temporary Cash Investments$44,099$89,853▲ $45,754
Pledges and Grants Receivable$1,850$11,300▲ $9,450
Inventories for Sale or Use$10,339$10,427▲ $88
Land, Buildings, and Equipment, Net$69,043$5,765▼ $63,278
Total Assets$3,031,725$3,376,722▲ $344,997
Other Assets Total$709,821$687,108▼ $22,713
Liabilities
Accounts Payable and Accrued Expenses$717,345$1,415,711▲ $698,366
Deferred Revenue$511,451$300,877▼ $210,574
Other Liabilities$37,076$7,775▼ $29,301
Total Liabilities$1,265,872$1,724,363▲ $458,491
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$1,151,952$1,068,141▼ $83,811
Net Assets With Donor Restrictions$613,901$584,218▼ $29,683
Total Net Assets Fund Balance$1,765,853$1,652,359▼ $113,494
Total Liabilities and Net Assets / Fund Balance$3,031,725$3,376,722▲ $344,997

Asset Categories

AssetBook ValueDepreciationBasis
Other Land Buildings$5,765$114,358$120,123
Equipment-$78,070$78,070
Other Assets Org$4,375--

Endowment Activity

PeriodBeginningContrib.Gain/LossOther UsesEnd
2024$947,133-▲ $94,498$63,301$978,330
2023$818,372-▲ $128,761-$947,133
2022$994,148-▼ $141,225$34,551$818,372
2021$867,069-▲ $76,395-$994,148
2020$775,989-▲ $80,080$89,000$867,069
Compensation and Service Providers
Top Officer Pay41st percentile

Employees

NameTitleFull / Part TimeBaseTotal
Susan GilgoreExecutive DiFT$109,200$109,200

Board Members and Trustees

NameTitle
Douglas HempsteadChairman of
Patsy BresciaVice Chair O
Charles NystromTrustee
David G WestmorelandTrustee
David Heuvelman EsqTrustee
Ernest DesrochersTrustee
Gail IngisTrustee
Gary LorussoTrustee
Kathleen CustisTrustee
Kathleen OlsenTrustee
Lawrence F Cafero JrTrustee
Margaret Walker EsqTrustee
Miklos P KoleszarTrustee
Mimi FindlayTrustee
Paul L Veeder IiTrustee
Victoria VandammTrustee
Gail Candlin2nd Vice CHA
Lynne H ByingtonSecretary
SHANNON O'TOOLE-GIANDURCOTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$9,757,767
Program Service Revenue
$0
Investment Income
$17,389
Other Revenue
$13,387
All Other Contributions
$115,772
Change in Net Assets
$-191,850

Noncash Contribution Practices

Property subject to holding requirements
No
Reviewed unusual noncash gifts
No
Third parties used for noncash contributions
No

Noncash Contributions

Contribution TypeContribution CountReported AmountValuation Method
Other Non Cash Contri Table4$24,620Cost
Other Non Cash Contri Table1$16,726Cost
Food Inventory9$835Cost
Other Non Cash Contri Table4$324Cost
Total Noncash Contributions18$42,505-

Audited Revenue Reconciliation

Revenue per Audited Statements
$9,788,543
Revenue Not Reported on Form 990
$78,469
Total Revenue per Audited Statements
$9,867,012
Total Revenue per Form 990
$9,788,543
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$9,728,293
Salaries, Compensation, and Employee Benefits$252,100
Total Fundraising Expense$46,734
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$38,226$67,064$20,172$125,462
Current Officers, Directors, Trustees, and Key Employees$33,271$58,371$17,558$109,200
Fees for Services Accounting$33,535$41,125$959$75,619
Advertising$32,279$12,476$2,213$46,968
Insurance-$22,431-$22,431
Occupancy$2,782$17,499-$20,281
Payroll Taxes$5,313$9,321$2,804$17,438
Office Expenses$6,883$3,533$2,460$12,876
Depreciation Depletion$5,747--$5,747
Other Expenses$3,786$6,528$253$3,786
Travel$663$1,233$315$2,211
All Other Expenses$129--$129
Total Functional Expenses$9,684,869$248,790$46,734$9,980,393

Audited Expense Reconciliation

Line ItemAmount
Total Expenses per Audited Statements$9,980,506
Expenses per Audited Statements$9,980,393
Total Expenses per Form 990$9,980,393
Expenses Not Reported on Form 990$113
Fundraising, Events, and Gaming
Fundraising activities
Yes
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Gross Income$29,792
Fundraising Direct Expenses$16,643
Professional Fundraising Fees$0

Fundraising Events

EventGross ReceiptsGross RevenueDirect ExpensesNet Income
Gala Event$87,693$29,792$16,643$13,149
Total Events$87,693$29,792$16,643$13,149
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Lease Liability$7,775
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Audit committee
Yes
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
Yes
Other officer compensation reviewed
No
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Page 6, Part VI, Line 11B

“The lockwood-mathews mansion museum of norwalk, inc. Recognizes that the governance role of its finance committtee includes the annual review of the form 990. Accordingly, the organization requires review of the form 990 by the finance committee prior to its filing on an annual basis. It is then sent to the board of trustees and all members are invited to review the completed form 990 in advance of the filing deadline. Once the trustee's questions are answered or clarified, and the 990 is approved for filing, the return is then electronically filed.”

Form 990, Page 6, Part VI, Line 12C

“Officers, directors, key employees, and trustees are required to disclose annually interests that could give rise to conflicts of interests. A complete list of vendors which the organization carries on business with is furnished to these individuals. They are required to review the list and indicate if there is any personal, family, or business relationships with such vendors.”

Form 990, Page 6, Part VI, Line 15A

“The annual compensation of the organization's executive director is reviewed by the personnel and executive committee. This committee utilizes reports on compensation for similar sized not-for-profit organizations and comparable wage information in order to determine the appropriate level of compensation for its executives.”

Form 990, Page 6, Part VI, Line 19

“The organization makes these items available to the public upon request. Other information regarding the organization's committees, management, and annual giving campaigns can be accessed at the organization's website, lockwoodmathewsmansion.com.”

Filing and Contact Details

Filer

Filer Name
Lockwood-mathews Mansion Museum of
EIN
06-0811776
Phone
2038389799
Address
295 WEST AVENUE, NORWALK, CT 06850

Signing Officer

Name
Douglas Hempstead
Title
Chairman of Board
Phone
2038389799
Signed
2025-11-14
Discuss with paid preparer
Yes

Organization Details

Principal Officer
SHANNON O'TOOLE-GIANDURCO
Formed
1966
Legal Domicile
Ct
Voting Board Members
19
Independent Board Members
19
Employees
4
Volunteers
70

Preparer

Firm
1source Partners
Address
701 S HOWARD AVE STE 203, TAMPA, FL 33606
Preparer
Paul Degance
Phone
8132547222
Supplemental Narrative

Additional Explanations

Form 990, Part III

“And the region through public programs that illustrate our nation's late 19th-century heritage and its significance to our own and future times.”

Form 990, Part XI, Line 9

“Inventory sale - cogs 113 inventory sale - cogs -113”

Financial Statement Notes

Schedule D, Page 2, Part V, Line 4

“Lockwood-mathews foundation endowment assets will be utilized in preserving the national historical landmark and its cultural mission.”

Schedule D, Page 4, Part XI, Line 2D

“Inventory sale - cogs 113”

Schedule D, Page 4, Part XII, Line 2D

“Inventory sale - cogs 113”

Raw XML AppendixShowing 400 of 622 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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