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Nonprofit · EIN 46-0986057

FRIENDS OF JONATHAN CLARK HOUSE LTD

Tax-exempt · MEQUON, WI 53092

Financials

$78K$29K2023$66K$32K2024$123K$89K2025
Revenue Expenses · by fiscal year end
Financials of FRIENDS OF JONATHAN CLARK HOUSE LTD by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$123,496$88,672$34,824$524,907$115,305$409,602
December 31, 2024990-EZ$66,042$32,298$33,744$498,923$124,145$374,778
December 31, 2023990-EZ (amended)$77,689$28,555$49,134$473,908$132,874$341,034
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$110,492
Program service revenue
$0
Investment income
$13,005
Net income from sales of inventory
-$1
Other revenue
-$1

Expenses

Grants and similar amounts paid
$500
Compensation of officers, directors and key employees
$9,000
Other salaries and wages
$4,915
Salaries, compensation and benefits (total)
$13,915
Professional fundraising fees
$0
Accounting fees
$10
Occupancy
$64,603
Program services (functional)
$84,208
Management and general (functional)
$4,464

Balance sheet and other

Total assets, start of year
$498,923
Total assets, end of year
$524,907
Total liabilities, end of year
$115,305
Net assets, end of year
$409,602
Land, buildings and equipment
$243,980
Publicly traded securities
$110,173
Net assets without donor restrictions
$409,602
Gross receipts
$123,685
Employees
0
Volunteers
50
Year formed
2012
State of legal domicile
WI

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, 2025, highest compensation first.

NameTitleHours / weekCompensation
Nicole BuerosseSecretary, Board Member, Assistant Director
Trustee or director, Officer, Key employee, Highest-paid employee
20$9,000
Shaw BridgesTreasurer, Board Member
Trustee or director, Officer
10$0
Thomas DaubPresident, Board Member
Trustee or director, Officer
2$0
Bill KroyerBoard Member
Trustee or director
1$0
Christopher OsborneBoard Member
Trustee or director
1$0
Brady SeiberlichBoard Member
Trustee or director
3$0
Randy Trumbull-HolperBoard Member
Trustee or director
2$0
Kurt ZellmannBoard Member
Trustee or director
1$0
Margaret BussoneVice President
Key employee
5$0
Frederick DerrPreservation Manager
Key employee
25$0
Nina Look PhDExecutive Director
Key employee
30$0
990-EZ for the year ended December 31, 2024: 10 people
NameTitleHours / weekCompensation
Shaw BridgesTreasurer, Board Member4$0
Nicole BuerosseBoard Member1$0
Margaret BussoneVice President5$0
Thomas DaubPresident, Board Member3$0
Frederick DerrPreservation Manager20$0
Randy HolperBoard Member1$0
Bill KroyerBoard Member1$0
Nina Look PhDExecutive Director40$0
Brady SeiberlichBoard Member1$0
Kurt ZellmannBoard Member1$0
990-EZ for the year ended December 31, 2023: 10 people
NameTitleHours / weekCompensation
Robert BlazichBoard Member1$0
Shaw BridgesTreasurer, Board Member10$0
Margaret BussoneVice President, Board Member5$0
Thomas DaubPresident, Board Member2$0
Frederick DerrPreservation Manager25$0
Nina Look PhDExecutive Director32$0
Mary Ellen SampeBoard Member2$0
Theresa SchoessowBoard Member1$0
Brady SeiberlichBoard Member2$0
Tamara StrauseSecretary, Board Member2$0

Address and contacts

Address (IRS master file)
PO BOX 634, MEQUON, WI 53092-0634
In care of
% CINDY G BOCK
Mailing address (990-N for 2013)
PO Box 634, Mequon WI 53097
Principal officer (990 for 2025)
Robert Shaw Bridges, PO Box 634, Mequon, WI 53092
Principal officer (990-N for 2013)
Cindy G Bock, PO Box 634, Mequon WI 53097
Signed the 990
Robert Bridges, Treasurer
Phone
(262) 618-2051

Mission

Collect, preserve and share the history of the Jonathan Clark House and the early settlers of Mequon and Thiensville.

990 for the year ended December 31, 2025

Program accomplishments

  • House Restoration & Maintenance: Restore our listed building so that it appears much as it did when it was built in 1848. Meet the constant challenges of maintaining a structure that is more than 175 years old. Last year, over 200 visitors went through the house.
    Expenses $65,503
  • Community Outreach: Provide historical and educational programs emphasizing experiences from the mid-19th century for the entire community, especially young people. Groups include students, scouting and 4-H. Typical annual participation is about 500.
    Expenses $18,705 · grants $500

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, 2026990 on file
2024December 31, 2024May 15, 2025990-EZ on file
2023December 31, 2023May 15, 2024990-EZ on file

IRS record

EIN
46-0986057
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
2013
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$524,907
Income (IRS master file)
$123,685

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$123,496$88,672$524,907XML
990-EZDecember 2024$66,042$32,298$498,923XML
990-EZDecember 2023$77,689$28,555$473,908XML
990-EZDecember 2022–––IRS
990-EZDecember 2021–––IRS
990-EZDecember 2020–––IRS
990-EZDecember 2019–––IRS
990-EZDecember 2018–––IRS
990-N for 2013
Officer: Cindy G Bock
December 31, 2013≤ $50,000 receipts––e-Postcard

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 46-0986057).

Questions about FRIENDS OF JONATHAN CLARK HOUSE LTD

What is the EIN of FRIENDS OF JONATHAN CLARK HOUSE LTD?
The employer identification number (EIN) of FRIENDS OF JONATHAN CLARK HOUSE LTD is 46-0986057.
Is FRIENDS OF JONATHAN CLARK HOUSE LTD tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2013.
Are donations to FRIENDS OF JONATHAN CLARK HOUSE LTD tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does FRIENDS OF JONATHAN CLARK HOUSE LTD 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 FRIENDS OF JONATHAN CLARK HOUSE LTD due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did FRIENDS OF JONATHAN CLARK HOUSE LTD last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of FRIENDS OF JONATHAN CLARK HOUSE LTD?
The 990 for the year ended December 31, 2025 names Robert Shaw Bridges.
Who are the officers and directors of FRIENDS OF JONATHAN CLARK HOUSE LTD?
The 990 for the year ended December 31, 2025 lists 11 people; 1 received compensation from the organization, the highest $9,000 (Nicole Buerosse, Secretary, Board Member, Assistant Director).
How much revenue does FRIENDS OF JONATHAN CLARK HOUSE LTD have?
On its 990 for the year ended December 31, 2025 it reported revenue of $123,496, expenses of $88,672 and total assets of $524,907 at year end.

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