Civic Intelligence

Sister Bay Historical Society Inc

EIN 61-1436554 • 501(c)3 • Sister Bay, WI

Profile

Our mission is to encourage, foster and participate in the documentation, preservation and renovation of artifacts, buildings and sites in the Sister Bay area.

PO Box 34Sister Bay, WI 54234

sisterbayhistory.org

Siviq Scores

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

Liabilities / Assets

53rd percentile

0.08x

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

501(c)3 • $1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

73rd percentile

0.28x

Higher debt load relative to revenue than 73% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Net Margin

97th percentile

85%

Higher net margin than 97% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Top Officer Pay

40th percentile

$0

Higher top officer pay than 40% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Asset Growth

97th percentile

177%

Faster asset growth than 97% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

95th percentile

186%

Faster revenue growth than 95% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets53rd percentile

Assets

Up

$1,321,775

Up $844,926 (+177%) from 2023

Liabilities

Up

$105,354

Up $105,354 from 2023

Net Assets

Up

$1,216,421

Up $739,572 (+155%) from 2023

Operations
Liabilities / Revenue73rd percentileNet Margin97th percentile

Revenue

Up

$372,725

Up $242,450 (+186%) from 2023

Expenses

Up

$55,234

Up $6,216 (+13%) from 2023

Net Income

Up

$317,491

Up $236,234 (+291%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth97th percentile

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

$1.5M$1.0M$500K$0Assets 2021: $490,452Liabilities 2021: $0Net Assets 2021: $490,4522021Assets 2022: $393,942Liabilities 2022: $0Net Assets 2022: $393,9422022Assets 2023: $476,849Liabilities 2023: $0Net Assets 2023: $476,8492023Assets 2024: $1,321,775Liabilities 2024: $105,354Net Assets 2024: $1,216,4212024

Highlighted filing

2024

Assets$1,321,775
Liabilities$105,354
Net Assets$1,216,421
Open 2024 Filing

Operations Trend

Revenue Growth95th percentile

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

$400K$200K$0-$200KRevenue 2021: $236,044Expenses 2021: $96,788Net Income 2021: $139,2562021Revenue 2022: $55,395Expenses 2022: $151,905Net Income 2022: -$96,5102022Revenue 2023: $130,275Expenses 2023: $49,018Net Income 2023: $81,2572023Revenue 2024: $372,725Expenses 2024: $55,234Net Income 2024: $317,4912024

Highlighted filing

2024

Revenue$372,725
Expenses$55,234
Net Income$317,491
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$1,321,775
Liabilities
$105,354
Net assets
$1,216,421
Revenue
$372,725
Expenses
$55,234
Net income
$317,491
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.32$0.11$1.22$0.37$0.06$0.32
2023Detailed filing. Detailed filing data is available for this year.$0.48$0.00$0.48$0.13$0.05$0.08
2022Detailed filing. Detailed filing data is available for this year.$0.39$0.00$0.39$0.06$0.15$0.10
2021Detailed filing. Detailed filing data is available for this year.$0.49$0.00$0.49$0.24$0.10$0.14
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Oct 21, 2025
Return Version
2024v5.0
Gross Receipts
$509,225
Mission and Program Overview

Mission

Our mission is to encourage, foster and participate in the documentation, preservation and renovation of artifacts, building and sites in the Sister Bay area.

Our mission is to encourage, foster and participate in the documentation, preservation and renovation of artifacts, buildings and sites in Sister Bay Area.

Balance Sheet Detail
LineBeginningEndChange
Assets
Rtn Earn Endowment Incm Other Fnds$476,849$1,216,421▲ $739,572
Land, Buildings, and Equipment, Net$100,000$537,894▲ $437,894
Cash and Non-Interest-Bearing Accounts$185,255$280,746▲ $95,491
Investments in Publicly Traded Securities$191,594$214,005▲ $22,411
Savings and Temporary Cash Investments-$162,197-
Pledges and Grants Receivable-$117,897-
Inventories for Sale or Use-$9,036-
Investments Other Securities$0--
Pd in Cap Srpls Land Bldg Eqp Fund$0$0→ $0
Cap Stk Tr Prin Current Funds$0$0→ $0
Total Assets$476,849$1,321,775▲ $844,926
Other Assets Total$0$0→ $0
Liabilities
Unsecured Notes Loans Payable-$62,000-
Accounts Payable and Accrued Expenses$0$43,354▲ $43,354
Total Liabilities$0$105,354▲ $105,354
Net Assets / Fund Balance
Net Assets With Donor Restrictions$476,849$875,035▲ $398,186
Net Assets Without Donor Restrictions-$341,386-
Total Net Assets Fund Balance$476,849$1,216,421▲ $739,572
Total Liabilities and Net Assets / Fund Balance$476,849$1,321,775▲ $844,926

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$42,431$83,309-
Other Land Buildings$414,463--
Land$81,000--
Compensation and Service Providers
Top Officer Pay40th percentile

Board Members and Trustees

NameTitle
John LijewskiPresident
Robert JischkeVice President
Dennis LonstineDirector
Fred JohnsonDirector
John BlossomDirector
Karen SunstromDirector
Laurie ZelnioDirector
Linda JohnsonDirector
Mike PeotDirector
Paula AnschutzDirector
Roberta KutlikDirector
Patrice ChampeauCurator
Roberta ChampeauSecretary
Cathleen ManganTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$285,767
Program Service Revenue
$2,645
Investment Income
$27,634
Other Revenue
$56,679
All Other Contributions
$276,347
Change in Net Assets
$317,491

Noncash Contributions

Contribution TypeContribution CountReported AmountValuation Method
Cars and Other Vehicles1$34,866Appraisal
Total Noncash Contributions1$34,866-
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$55,234
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Occupancy$21,125--$21,125
Advertising$15,296--$15,296
Office Expenses$6,505--$6,505
Information Technology$6,404--$6,404
Depreciation Depletion$3,716--$3,716
Insurance$2,188--$2,188
Total Functional Expenses$55,234$0$0$55,234
Fundraising, Events, and Gaming
Fundraising activities
Yes
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Gross Income$193,179
Fundraising Direct Expenses$136,500
Professional Fundraising Fees$0

Fundraising Events

EventGross ReceiptsGross RevenueDirect ExpensesNet Income
Christkindlemarkt$165,936$165,936$132,950$32,986
Mothers Day Brunch$10,841$10,841$1,469$9,372
Total Events$193,179$193,179$136,500$56,679
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
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
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Part VI, Line 19

“Upon Request”

Part VI, Line 6

“Sister Bay Historical Society has members”

Filing and Contact Details

Filer

Filer Name
Sister Bay Historical Society Inc
EIN
61-1436554
Phone
9204212243
Address
PO Box 34, Sister Bay, WI 54234

Signing Officer

Name
Cathleen Mangan
Title
Treasurer
Phone
9204212243
Signed
2025-10-21

Organization Details

Principal Officer
John Lijewski
Formed
2002
Legal Domicile
Wi
Voting Board Members
11
Independent Board Members
11
Employees
0
Volunteers
100
Supplemental Narrative

Additional Explanations

Line B, Amended return

“The purpose of this amended return is to attach Form 3115 to the return. See PDF attached.”

Part III, Line 4D

“Out other program services above is for the development and construction of a "History Center". We are currently collecting donations to develop a building on our property into a community center and learning center.”

Part XII, Line 1

“The organization has changed it method of accounting from cash basis to accrual basis for 2024. Consequently an adjustment to opening fund balance was required to bring the opening balance up to accrual basis”

Financial Statement Notes

Part III, Line 1A

“The Organization has a collection of historical items related to the history of the Sister Bay area. The collections are made up of artifacts of historical significance and art objects that are held for educational, research and curatorial purposes. Each of the items is catalogued, preserved and cared for, and activities verifying their existence and assessing their condition are performed continuously. Collection items acquired either through purchase or donation are not capitalized. The collections are subject to a policy that requires proceeds from their sale to be used to acquire other items for collections. Purchases of collection items are recorded as decreases in net assets without donor restrictions if purchased with unrestricted assets or decreases in net assets with donor restrictions if purchased with restricted assets. Contributions of collection items are not recognized in the statement of activities. Proceeds from deaccessions or insurance recoveries are reflected on the statement of activities based on the absence or existence of donor-imposed restrictions.”

Part III, Line 4

“The Organization has a collection of historical items related to the history of the Sister Bay area. The collections are made up of artifacts of historical significance and art objects that are held for educational, research and curatorial purposes. Each of the items is catalogued, preserved and cared for, and activities verifying their existence and assessing their condition are performed continuously.”

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IRS990/ProgramServiceRevenueGrp/Desc0Museum Admissions
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IRS990/ProgSrvcAccomActy2Grp/Desc0This is our museum. We own 7 acres of land with 19 restored buildings which contain exhibits that are open for tours to the public for a small fee. We also rely on membership fees and fundraising events to support our museum operations.
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IRS990/ProgSrvcAccomActy3Grp/Desc0This will be our water front museum located off campus. This project will eventually house an historic boat and will have regular historic exhibits. This museum will be open to the public for a small fee and will collect regular membership dues from members to support it's activities.
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IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt0The Organization has a collection of historical items related to the history of the Sister Bay area. The collections are made up of artifacts of historical significance and art objects that are held for educational, research and curatorial purposes. Each of the items is catalogued, preserved and cared for, and activities verifying their existence and assessing their condition are performed continuously. Collection items acquired either through purchase or donation are not capitalized. The collections are subject to a policy that requires proceeds from their sale to be used to acquire other items for collections. Purchases of collection items are recorded as decreases in net assets without donor restrictions if purchased with unrestricted assets or decreases in net assets with donor restrictions if purchased with restricted assets. Contributions of collection items are not recognized in the statement of activities. Proceeds from deaccessions or insurance recoveries are reflected on the statement of activities based on the absence or existence of donor-imposed restrictions.
IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt1The Organization has a collection of historical items related to the history of the Sister Bay area. The collections are made up of artifacts of historical significance and art objects that are held for educational, research and curatorial purposes. Each of the items is catalogued, preserved and cared for, and activities verifying their existence and assessing their condition are performed continuously.
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IRS990ScheduleM/CarsAndOtherVehiclesGrp/MethodOfDeterminingRevenuesTxt0Appraisal
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0The purpose of this amended return is to attach Form 3115 to the return. See PDF attached.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1Out other program services above is for the development and construction of a "History Center". We are currently collecting donations to develop a building on our property into a community center and learning center.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2Upon Request
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt3Sister Bay Historical Society has members
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt4The organization has changed it method of accounting from cash basis to accrual basis for 2024. Consequently an adjustment to opening fund balance was required to bring the opening balance up to accrual basis
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Line B, Amended return
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IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Part VI, Line 19
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3Part VI, Line 6
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc4Part XII, Line 1
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