Civic Intelligence

Mayville Limestone School Museum Inc

EIN 39-1402427 • 501(c)3 • Mayville, WI

Profile

Preserve the history of the mayville area through public exhibits of artifacts, pictures and documents.

PO Box 102Mayville, WI 53050

www.mlsm.org

Siviq Scores

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

Liabilities / Assets

32nd percentile

0.01x

Higher debt load relative to assets than 32% of similar nonprofits.

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

Liabilities / Revenue

60th percentile

0.14x

Higher debt load relative to revenue than 60% of similar nonprofits.

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

Net Margin

89th percentile

51%

Higher net margin than 89% 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

70th percentile

12%

Faster asset growth than 70% of similar nonprofits.

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

Revenue Growth

68th percentile

21%

Faster revenue growth than 68% of similar nonprofits.

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

Balance Sheet
Liabilities / Assets32nd percentile

Assets

Up

$1,032,428

Up $113,053 (+12%) from 2024

Liabilities

Up

$9,000

Up $2,500 (+38%) from 2024

Net Assets

Up

$1,023,428

Up $110,553 (+12%) from 2024

Operations
Liabilities / Revenue60th percentileNet Margin89th percentile

Revenue

Up

$64,728

Up $11,276 (+21%) from 2024

Expenses

Up

$31,688

Up $11,939 (+60%) from 2024

Net Income

Down

$33,040

Down $663 (-2.0%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth70th percentile

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

$1.5M$1.0M$500K$0Assets 2014: $479,060Liabilities 2014: $4,500Net Assets 2014: $474,5602014Assets 2015: $491,637Liabilities 2015: $4,500Net Assets 2015: $487,1372015Assets 2016: $587,458Liabilities 2016: $4,500Net Assets 2016: $582,9582016Assets 2017: $628,563Liabilities 2017: $4,500Net Assets 2017: $624,0632017Assets 2018: $674,489Liabilities 2018: $4,500Net Assets 2018: $669,9892018Assets 2019: $764,381Liabilities 2019: $4,500Net Assets 2019: $759,8812019Assets 2020: $753,874Liabilities 2020: $7,500Net Assets 2020: $746,3742020Assets 2021: $853,976Liabilities 2021: $7,500Net Assets 2021: $846,4762021Assets 2022: $872,282Liabilities 2022: $10,500Net Assets 2022: $861,7822022Assets 2023: $885,812Liabilities 2023: $7,500Net Assets 2023: $878,3122023Assets 2024: $919,375Liabilities 2024: $6,500Net Assets 2024: $912,8752024Assets 2025: $1,032,428Liabilities 2025: $9,000Net Assets 2025: $1,023,4282025

Highlighted filing

2025

Assets$1,032,428
Liabilities$9,000
Net Assets$1,023,428
Open 2025 Filing

Operations Trend

Revenue Growth68th percentile

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

$400K$300K$200K$100K$0Revenue 2014: $359,804Expenses 2014: $14,888Net Income 2014: $344,9162014Revenue 2015: $33,526Expenses 2015: $17,763Net Income 2015: $15,7632015Revenue 2016: $34,713Expenses 2016: $32,980Net Income 2016: $1,7332016Revenue 2017: $33,024Expenses 2017: $25,017Net Income 2017: $8,0072017Revenue 2018: $49,721Expenses 2018: $22,091Net Income 2018: $27,6302018Revenue 2019: $49,003Expenses 2019: $22,377Net Income 2019: $26,6262019Revenue 2020: $40,902Expenses 2020: $29,511Net Income 2020: $11,3912020Revenue 2021: $40,053Expenses 2021: $24,517Net Income 2021: $15,5362021Revenue 2022: $52,907Expenses 2022: $41,406Net Income 2022: $11,5012022Revenue 2023: $47,039Expenses 2023: $20,916Net Income 2023: $26,1232023Revenue 2024: $53,452Expenses 2024: $19,749Net Income 2024: $33,7032024Revenue 2025: $64,728Expenses 2025: $31,688Net Income 2025: $33,0402025

Highlighted filing

2025

Revenue$64,728
Expenses$31,688
Net Income$33,040
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$1,032,428
Liabilities
$9,000
Net assets
$1,023,428
Revenue
$64,728
Expenses
$31,688
Net income
$33,040
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.03$0.01$1.02$0.06$0.03$0.03
2024XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.92$0.01$0.91$0.05$0.02$0.03
2023XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.89$0.01$0.88$0.05$0.02$0.03
2022XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.87$0.01$0.86$0.05$0.04$0.01
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.85$0.01$0.85$0.04$0.02$0.02
2020XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.75$0.01$0.75$0.04$0.03$0.01
2019XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.76$0.00$0.76$0.05$0.02$0.03
2018XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.67$0.00$0.67$0.05$0.02$0.03
2017XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.63$0.00$0.62$0.03$0.03$0.01
2016Import issue. A filing source exists for this year, but detailed import did not complete cleanly.$0.59$0.00$0.58$0.03$0.03$0.00
2015Detailed filing. Detailed filing data is available for this year.$0.49$0.00$0.49$0.03$0.02$0.02
2014XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.48$0.00$0.47$0.36$0.01$0.34
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Nov 11, 2025
Return Version
2024v5.2
Gross Receipts
$64,728
Mission and Program Overview

Mission

To preserve the history of the mayville area through public exhibits of artifacts, pictures and documents.

Balance Sheet Detail
LineBeginningEndChange
Assets
Investments in Publicly Traded Securities$639,610$717,354▲ $77,744
Savings and Temporary Cash Investments$220,746$245,641▲ $24,895
Land, Buildings, and Equipment, Net$56,567$56,567→ $0
Cash and Non-Interest-Bearing Accounts$2,452$12,866▲ $10,414
Total Assets$919,375$1,032,428▲ $113,053
Liabilities
Grants Payable$6,500$9,000▲ $2,500
Total Liabilities$6,500$9,000▲ $2,500
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$912,875$1,023,428▲ $110,553
Total Net Assets Fund Balance$912,875$1,023,428▲ $110,553
Total Liabilities and Net Assets / Fund Balance$919,375$1,032,428▲ $113,053

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$56,567$20,281$76,848
Compensation and Service Providers
Top Officer Pay40th percentile

Board Members and Trustees

NameTitle
Todd ZanglPresident
Laura CongdonVice President
Andy ShoemakerDirector
Anne BauerDirector
Brian NealDirector
Dick MoldenhauerDirector
Emil LazichDirector
Gene FringsDirector
Ron GuseDirector
Don BauerSecretary
Gale CristTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$20,362
Program Service Revenue
$0
Investment Income
$44,361
Other Revenue
$5
All Other Contributions
$19,965
Change in Net Assets
$33,040
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$22,688
Grants and Similar Amounts Paid$9,000
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Grants to Domestic Individuals$9,000--$9,000
Occupancy$8,039--$8,039
Insurance$2,639--$2,639
Fees for Services Accounting$630--$630
Advertising$536--$536
Other Expenses$86--$86
Total Functional Expenses$31,688$0$0$31,688
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
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
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, Part VI, Section A, Line 2

“Anne bauer, director, is the wife of don bauer, secretary.”

Form 990, Part VI, Section B, Line 11B

“A copy of form 990 is provided to, reviewed and approved by the board of directors before filing.”

Form 990, Part VI, Section C, Line 19

“Form 990 is available for public inspection upon request.”

Filing and Contact Details

Filer

Filer Name
Mayville Limestone School Museum Inc
EIN
39-1402427
Phone
9209370122
Address
PO BOX 102, MAYVILLE, WI 53050

Signing Officer

Name
Todd Zangl
Title
President
Phone
9209370122
Signed
2025-11-11
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Todd Zangl
Formed
1999
Legal Domicile
Wi
Voting Board Members
9
Independent Board Members
9
Employees
0
Volunteers
0

Preparer

Firm
The Vanderbloemen Group LLC
Address
14 NORTH MAIN STREET, MAYVILLE, WI 53050
Preparer
Richard Mccormick
Phone
9203873356
Raw XML Appendix380 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.

Path#Value
IRS990/AccountantCompileOrReviewInd00
IRS990/ActivitiesConductedPrtshpInd00
IRS990/ActivityOrMissionDesc0TO PRESERVE THE HISTORY OF THE MAYVILLE AREA THROUGH PUBLIC EXHIBITS OF ARTIFACTS, PICTURES AND DOCUMENTS.
IRS990/AdvertisingGrp/ProgramServicesAmt0536
IRS990/AdvertisingGrp/TotalAmt0536
IRS990/AllOtherContributionsAmt019965
IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt0GALE CRIST
IRS990/BooksInCareOfDetail/PhoneNum09209370122
IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt0PO BOX 102
IRS990/BooksInCareOfDetail/USAddress/CityNm0MAYVILLE
IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd0WI
IRS990/BooksInCareOfDetail/USAddress/ZIPCd053050
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IRS990/ChangeToOrgDocumentsInd00
IRS990/CntrctRcvdGreaterThan100KCnt00
IRS990/CollectionsOfArtInd00
IRS990/CompensationFromOtherSrcsInd00
IRS990/CompensationProcessCEOInd00
IRS990/CompensationProcessOtherInd00
IRS990/ConflictOfInterestPolicyInd00
IRS990/ConservationEasementsInd00
IRS990/ConsolidatedAuditFinclStmtInd00
IRS990/CreditCounselingInd00
IRS990/CYBenefitsPaidToMembersAmt00
IRS990/CYContributionsGrantsAmt020362
IRS990/CYGrantsAndSimilarPaidAmt09000
IRS990/CYInvestmentIncomeAmt044361
IRS990/CYOtherExpensesAmt022688
IRS990/CYOtherRevenueAmt05
IRS990/CYProgramServiceRevenueAmt00
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IRS990/CYSalariesCompEmpBnftPaidAmt00
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IRS990/CYTotalFundraisingExpenseAmt00
IRS990/CYTotalProfFndrsngExpnsAmt00
IRS990/CYTotalRevenueAmt064728
IRS990/DecisionsSubjectToApprovaInd00
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IRS990/DescribedInSection501c3Ind01
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IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd3X
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IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd10X
IRS990/Form990PartVIISectionAGrp/OfficerInd0X
IRS990/Form990PartVIISectionAGrp/OfficerInd1X
IRS990/Form990PartVIISectionAGrp/OfficerInd2X
IRS990/Form990PartVIISectionAGrp/OfficerInd3X
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt00
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt10
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt20
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt30
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt40
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt50
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt60
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt70
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt80
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt90
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt100
IRS990/Form990PartVIISectionAGrp/PersonNm0GENE FRINGS
IRS990/Form990PartVIISectionAGrp/PersonNm1LAURA CONGDON
IRS990/Form990PartVIISectionAGrp/PersonNm2DON BAUER
IRS990/Form990PartVIISectionAGrp/PersonNm3GALE CRIST
IRS990/Form990PartVIISectionAGrp/PersonNm4ANNE BAUER
IRS990/Form990PartVIISectionAGrp/PersonNm5ANDY SHOEMAKER
IRS990/Form990PartVIISectionAGrp/PersonNm6EMIL LAZICH
IRS990/Form990PartVIISectionAGrp/PersonNm7TODD ZANGL
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IRS990/Form990PartVIISectionAGrp/PersonNm9RON GUSE
IRS990/Form990PartVIISectionAGrp/PersonNm10BRIAN NEAL
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt00
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt10
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt20
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IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt40
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IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt100
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt00
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IRS990/Form990PartVIISectionAGrp/TitleTxt0DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt1VICE PRESIDENT
IRS990/Form990PartVIISectionAGrp/TitleTxt2SECRETARY
IRS990/Form990PartVIISectionAGrp/TitleTxt3TREASURER
IRS990/Form990PartVIISectionAGrp/TitleTxt4DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt5DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt6DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt7PRESIDENT
IRS990/Form990PartVIISectionAGrp/TitleTxt8DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt9DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt10DIRECTOR
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IRS990/GrantsToOrganizationsInd00
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IRS990/GroupReturnForAffiliatesInd00
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IRS990/ReportProgramRelatedInvstInd00
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IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt019667
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IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt020386
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IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt020610
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IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt028514
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt019667
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IRS990ScheduleB/ContributorInformationGrp/ContributorNum0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine10RESTRICTED
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IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt0RESTRICTED
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0ANNE BAUER, DIRECTOR, IS THE WIFE OF DON BAUER, SECRETARY.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1A COPY OF FORM 990 IS PROVIDED TO, REVIEWED AND APPROVED BY THE BOARD OF DIRECTORS BEFORE FILING.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2FORM 990 IS AVAILABLE FOR PUBLIC INSPECTION UPON REQUEST.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0FORM 990, PART VI, SECTION A, LINE 2
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1FORM 990, PART VI, SECTION B, LINE 11B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2FORM 990, PART VI, SECTION C, LINE 19
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IRS990/TaxablePartyNotificationInd00
IRS990/TaxExemptBondsInd00
IRS990/TerminateOperationsInd00
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IRS990/TotalAssetsGrp/BOYAmt0919375
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IRS990/TotalEmployeeCnt00
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IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt00
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IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt05
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IRS990/TrnsfrExmptNonChrtblRltdOrgInd00
IRS990/TypeOfOrganizationCorpInd0X
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IRS990/UponRequestInd0X
IRS990/USAddress/AddressLine1Txt0PO BOX 102
IRS990/USAddress/CityNm0MAYVILLE
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IRS990/VotingMembersIndependentCnt09
IRS990/WebsiteAddressTxt0WWW.MLSM.ORG
IRS990/WhistleblowerPolicyInd00
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd01
ReturnHeader/BusinessOfficerGrp/PersonNm0TODD ZANGL
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0PRESIDENT
ReturnHeader/BusinessOfficerGrp/PhoneNum09209370122
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-11-11
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0MAYVILLE LIMESTONE SCHOOL MUSEUM INC
ReturnHeader/Filer/BusinessNameControlTxt0MAYV
ReturnHeader/Filer/EIN0391402427
ReturnHeader/Filer/PhoneNum09209370122
ReturnHeader/Filer/USAddress/AddressLine1Txt0PO BOX 102
ReturnHeader/Filer/USAddress/CityNm0MAYVILLE
ReturnHeader/Filer/USAddress/StateAbbreviationCd0WI
ReturnHeader/Filer/USAddress/ZIPCd053050
ReturnHeader/IRSResponsiblePrtyInfoCurrInd00
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0201640706
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0THE VANDERBLOEMEN GROUP LLC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt014 NORTH MAIN STREET
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0MAYVILLE
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0WI
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd053050
ReturnHeader/PreparerPersonGrp/PhoneNum09203873356
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0RICHARD MCCORMICK
ReturnHeader/ReturnTs02025-11-11T15:56:11-06:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-07-01
ReturnHeader/TaxPeriodEndDt02025-06-30
ReturnHeader/TaxYr02024

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