Civic Intelligence

Big Rock Historical Society

EIN 36-4038337 • 501(c)3 • Big Rock, IL

Profile

To establish, maintain, and operate a museum for the general public, and to collect, research, care for and interpret materials and artifacts of cultural and historical interest to the residents of big rock and vistors to the museum/library.

48w445 Hinckley Road Box 206Big Rock, IL 60511

www.bigrockhistoricalsociety.org

Siviq Scores

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

Liabilities / Assets

19th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Liabilities / Revenue

20th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Net Margin

7th percentile

-46%

Higher net margin than 7% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

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 2025

Asset Growth

28th percentile

-3.5%

Faster asset growth than 28% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Revenue Growth

82nd percentile

47%

Faster revenue growth than 82% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets19th percentile

Assets

Down

$2,324,948

Down $83,894 (-3.5%) from 2024

Liabilities

Flat

$0

Flat from 2024

Net Assets

Down

$2,324,948

Down $83,894 (-3.5%) from 2024

Operations
Liabilities / Revenue20th percentileNet Margin7th percentile

Revenue

Up

$183,455

Up $58,260 (+47%) from 2024

Expenses

Up

$267,349

Up $178,417 (+201%) from 2024

Net Income

Down

-$83,894

Down $120,157 (-331%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth28th percentile

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

$3.0M$2.0M$1.0M$0Assets 2020: $2,351,940Liabilities 2020: $0Net Assets 2020: $2,351,9402020Assets 2021: $2,441,782Liabilities 2021: $0Net Assets 2021: $2,441,7822021Assets 2022: $2,408,506Liabilities 2022: $0Net Assets 2022: $2,408,5062022Assets 2023: $2,372,579Liabilities 2023: $0Net Assets 2023: $2,372,5792023Assets 2024: $2,408,842Liabilities 2024: $0Net Assets 2024: $2,408,8422024Assets 2025: $2,324,948Liabilities 2025: $0Net Assets 2025: $2,324,9482025

Highlighted filing

2025

Assets$2,324,948
Liabilities$0
Net Assets$2,324,948
Open 2025 Filing

Operations Trend

Revenue Growth82nd percentile

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

$2.0M$1.0M$0-$1.0MRevenue 2020: $1,916,126Expenses 2020: $36,163Net Income 2020: $1,879,9632020Revenue 2021: $200,405Expenses 2021: $110,563Net Income 2021: $89,8422021Revenue 2022: $48,787Expenses 2022: $81,784Net Income 2022: -$32,9972022Revenue 2023: $77,329Expenses 2023: $113,256Net Income 2023: -$35,9272023Revenue 2024: $125,195Expenses 2024: $88,932Net Income 2024: $36,2632024Revenue 2025: $183,455Expenses 2025: $267,349Net Income 2025: -$83,8942025

Highlighted filing

2025

Revenue$183,455
Expenses$267,349
Net Income-$83,894
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$2,324,948
Liabilities
$0
Net assets
$2,324,948
Revenue
$183,455
Expenses
$267,349
Net income
-$83,894
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$2.32$0.00$2.32$0.18$0.27$0.08
2024Detailed filing. Detailed filing data is available for this year.$2.41$0.00$2.41$0.13$0.09$0.04
2023Detailed filing. Detailed filing data is available for this year.$2.37$0.00$2.37$0.08$0.11$0.04
2022Detailed filing. Detailed filing data is available for this year.$2.41$0.00$2.41$0.05$0.08$0.03
2021Detailed filing. Detailed filing data is available for this year.$2.44$0.00$2.44$0.20$0.11$0.09
2020Detailed filing. Detailed filing data is available for this year.$2.35$0.00$2.35$1.92$0.04$1.88
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2025 to Dec 31, 2025
Signed
Mar 3, 2026
Return Version
2025v4.0
Gross Receipts
$201,411
Mission and Program Overview

Mission

To establish, maintain, and operate a museum for the general public, and to collect, research, care for and interpret materials and artifacts of cultural and historical interest to the residents of big rock and vistors to the museum/library.

Balance Sheet Detail
LineBeginningEndChange
Assets
Land, Buildings, and Equipment, Net$1,876,085$1,860,129▼ $15,956
Investments in Publicly Traded Securities$161,496$176,499▲ $15,003
Savings and Temporary Cash Investments$233,988$161,302▼ $72,686
Cash and Non-Interest-Bearing Accounts$137,273$127,018▼ $10,255
Total Assets$2,408,842$2,324,948▼ $83,894
Liabilities
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$2,408,842$2,324,948▼ $83,894
Total Net Assets Fund Balance$2,408,842$2,324,948▼ $83,894
Total Liabilities and Net Assets / Fund Balance$2,408,842$2,324,948▼ $83,894

Asset Categories

AssetBook ValueDepreciationBasis
Land$1,481,000-$1,481,000
Buildings$308,960$182,243$491,203
Leasehold Improvements$38,625$64,179$102,804
Other Land Buildings$31,544$3,310$34,854
Compensation and Service Providers
Top Officer Pay40th percentile

Board Members and Trustees

NameTitle
Sue BeckPresident
Janis FinleyDirector
Jerry ThompsonDirector
John RogersonDirector
Joni RoscoeDirector
Lindsey ZambranoDirector
Mary RogersonSecretary
Stephen MichaelTreasurer
Jerry ThomasVice Preside
Revenue and Support

Revenue Composition

Contributions and Grants
$113,433
Program Service Revenue
$7,949
Investment Income
$15,003
Other Revenue
$47,070
All Other Contributions
$112,128
Change in Net Assets
$-83,894
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$255,412
Salaries, Compensation, and Employee Benefits$11,937
Total Fundraising Expense$415
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Occupancy$2,764$17,095-$19,859
Depreciation Depletion$15,956--$15,956
Insurance$7,504$4,300-$11,804
Other Salaries and Wages$11,089--$11,089
All Other Expenses$10,841$148-$10,989
Other Expenses$13,305$8,489-$8,489
Payroll Taxes$848--$848
Fees for Services Other--$415$415
Office Expenses$178--$178
Total Functional Expenses$228,179$38,755$415$267,349
Fundraising, Events, and Gaming
Fundraising activities
Yes
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Gross Income$25,926
Fundraising Direct Expenses$17,956
Professional Fundraising Fees$0

Fundraising Events

EventGross ReceiptsGross RevenueDirect ExpensesNet Income
Auto Show$21,975$21,975$6,330$15,645
Total Events$21,975$21,975$14,796$7,179
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
No
Backup withholding compliance
No
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

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

“No review was or will be conducted.”

Form 990, Page 6, Part VI, Line 19

“No documents available to the public”

Filing and Contact Details

Filer

Filer Name
Big Rock Historical Society
EIN
36-4038337
Phone
6308789040
Address
48W445 HINCKLEY ROAD BOX 206, BIG ROCK, IL 60511

Signing Officer

Name
Sue Beck
Title
President
Phone
6308789040
Signed
2026-03-03
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Sue Beck
Formed
1998
Legal Domicile
Il
Voting Board Members
9
Independent Board Members
9
Employees
1

Preparer

Firm
Newkirk & Associates Inc
Address
2 W MAIN ST, PLANO, IL 60545-1429
Preparer
William Newkirk
Phone
6305521040
Supplemental Narrative

Additional Explanations

FORM 990 - ORGANIZATION'S MISSION

“To establish, maintain, and operate a museum for the general public, and to collect, research, care for and interpret materials and artifacts of cultural and historical interest to the residents of big rock and vistors to the museum/library.”

Form 990, Page 2, Part III, Line 4D

“Library, mowing, museum, repairs and maintenance, utilities and other miscellaneous expenses”

Raw XML Appendix366 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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IRS990/Form990PartVIISectionAGrp/TitleTxt4DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt5DIRECTOR
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IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt0102804
IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt031544
IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt03310
IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt034854
IRS990ScheduleD/TotalBookValueLandBuildingsAmt01860129
IRS990ScheduleG/FundraisingEventInformationGrp/DirectExpenseSummaryEventsAmt014796
IRS990ScheduleG/FundraisingEventInformationGrp/EntertainmentEvent1Amt0900
IRS990ScheduleG/FundraisingEventInformationGrp/EntertainmentTotalEventsAmt0900
IRS990ScheduleG/FundraisingEventInformationGrp/Event1Nm0AUTO SHOW
IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageEvent1Amt05714
IRS990ScheduleG/FundraisingEventInformationGrp/FoodAndBeverageTotalEventsAmt05714
IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsEvent1Amt021975
IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsTotalAmt021975
IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueEvent1Amt021975
IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueTotalEventsAmt021975
IRS990ScheduleG/FundraisingEventInformationGrp/NetIncomeSummaryAmt07179
IRS990ScheduleG/FundraisingEventInformationGrp/NonCashPrizesEvent1Amt01852
IRS990ScheduleG/FundraisingEventInformationGrp/NonCashPrizesTotalEventsAmt01852
IRS990ScheduleG/FundraisingEventInformationGrp/OthDirectExpnssTotalEventsAmt06330
IRS990ScheduleG/FundraisingEventInformationGrp/OtherDirectExpensesEvent1Amt06330
IRS990/ScheduleJRequiredInd0false
IRS990/ScheduleORequiredInd0false
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0TO ESTABLISH, MAINTAIN, AND OPERATE A MUSEUM FOR THE GENERAL PUBLIC, AND TO COLLECT, RESEARCH, CARE FOR AND INTERPRET MATERIALS AND ARTIFACTS OF CULTURAL AND HISTORICAL INTEREST TO THE RESIDENTS OF BIG ROCK AND VISTORS TO THE MUSEUM/LIBRARY.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1LIBRARY, MOWING, MUSEUM, REPAIRS AND MAINTENANCE, UTILITIES AND OTHER MISCELLANEOUS EXPENSES
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2NO REVIEW WAS OR WILL BE CONDUCTED.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt3NO DOCUMENTS AVAILABLE TO THE PUBLIC
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0FORM 990 - ORGANIZATION'S MISSION
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1FORM 990, PAGE 2, PART III, LINE 4D
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2FORM 990, PAGE 6, PART VI, LINE 11B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3FORM 990, PAGE 6, PART VI, LINE 19
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IRS990/SubjectToExcsTaxNetInvstIncInd0false
IRS990/SubjectToProxyTaxInd0false
IRS990/SubjToTaxRmnrtnExPrchtPymtInd0false
IRS990/TaxablePartyNotificationInd0false
IRS990/TaxExemptBondsInd0false
IRS990/TerminateOperationsInd0false
IRS990/TotalAssetsBOYAmt02408842
IRS990/TotalAssetsEOYAmt02324948
IRS990/TotalAssetsGrp/BOYAmt02408842
IRS990/TotalAssetsGrp/EOYAmt02324948
IRS990/TotalCompGreaterThan150KInd0false
IRS990/TotalContributionsAmt0113433
IRS990/TotalEmployeeCnt01
IRS990/TotalFunctionalExpensesGrp/FundraisingAmt0415
IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt038755
IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt0228179
IRS990/TotalFunctionalExpensesGrp/TotalAmt0267349
IRS990/TotalGrossUBIAmt00
IRS990/TotalLiabilitiesEOYAmt00
IRS990/TotalLiabilitiesGrp/BOYAmt00
IRS990/TotalLiabilitiesGrp/EOYAmt00
IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt02408842
IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt02324948
IRS990/TotalOtherProgSrvcExpenseAmt0228179
IRS990/TotalProgramServiceExpensesAmt0228179
IRS990/TotalProgramServiceRevenueAmt07949
IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt062052
IRS990/TotalRevenueGrp/TotalRevenueColumnAmt0183455
IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt02408842
IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt02324948
IRS990/TrnsfrExmptNonChrtblRltdOrgInd0false
IRS990/TypeOfOrganizationCorpInd0X
IRS990/UnrelatedBusIncmOverLimitInd0false
IRS990/USAddress/AddressLine1Txt0PO BOX 206
IRS990/USAddress/CityNm0BIG ROCK
IRS990/USAddress/StateAbbreviationCd0IL
IRS990/USAddress/ZIPCd060511
IRS990/VotingMembersGoverningBodyCnt09
IRS990/VotingMembersIndependentCnt09
IRS990/WebsiteAddressTxt0WWW.BIGROCKHISTORICALSOCIETY.ORG
IRS990/WhistleblowerPolicyInd0false
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd0true
ReturnHeader/BusinessOfficerGrp/PersonNm0SUE BECK
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0PRESIDENT
ReturnHeader/BusinessOfficerGrp/PhoneNum06308789040
ReturnHeader/BusinessOfficerGrp/SignatureDt02026-03-03
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0BIG ROCK HISTORICAL SOCIETY
ReturnHeader/Filer/BusinessNameControlTxt0BIGR
ReturnHeader/Filer/EIN0364038337
ReturnHeader/Filer/PhoneNum06308789040
ReturnHeader/Filer/USAddress/AddressLine1Txt048W445 HINCKLEY ROAD BOX 206
ReturnHeader/Filer/USAddress/CityNm0BIG ROCK
ReturnHeader/Filer/USAddress/StateAbbreviationCd0IL
ReturnHeader/Filer/USAddress/ZIPCd060511
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0203012182
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0NEWKIRK & ASSOCIATES INC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt02 W MAIN ST
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0PLANO
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0IL
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd0605451429
ReturnHeader/PreparerPersonGrp/PhoneNum06305521040
ReturnHeader/PreparerPersonGrp/PreparationDt02026-03-03
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0WILLIAM NEWKIRK
ReturnHeader/ReturnTs02026-03-03T12:52:20-05:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02025-01-01
ReturnHeader/TaxPeriodEndDt02025-12-31
ReturnHeader/TaxYr02025

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