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MARATHON COUNTY HISTORICAL SOCIETY

EIN 39-0875968 WAUSAU, WI

Revenue 2025
$5,841,668
Expenses 2025
$752,603

Program services were 65.9% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
A82Z
Classification
2000
Street
410 MCINDOE ST

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • BLAKE OPAL-WAHOSKE

    EXECUTIVE DI

    Total calculated
    $67,500
    From this org
    $67,500
    From related orgs
    $0
    Other
    $0
    Hours/week
    40
  • BRETT BARKER

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • BILL BERTRAM

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • SANDI CIHLAR

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • SAM CRIPPS

    SECRETARY

    Total calculated
    $0
    Hours/week
    0.25
  • PATRICK GOSZ

    TREASURER

    Total calculated
    $0
    Hours/week
    0.25
  • JOHN HATTENHAUER

    VICE PRESIDE

    Total calculated
    $0
    Hours/week
    0.25
  • LAUREL HOFFMANN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • GREG HUBER

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • JANE JANKE JOHNSON

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • RICHARD LOHR

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • DOROTHY MAXFIELD

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • STEVE MILLER

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • ANDREW DUDLEY SHANNON

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • BRIAN WILLIAMS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25
  • RUSSEL WILSON

    PRESIDENT

    Total calculated
    $0
    Hours/week
    0.25
  • DUWAYNE ZAMZOW

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $5,841,668
    Expenses
    $752,603
    Contributions
    $5,496,284
    Grants paid
    $0
  • 2024
    Revenue
    $3,237,587
    Expenses
    $656,885
    Contributions
    $3,000,296
    Grants paid
    $0
  • 2023
    Revenue
    $399,407
    Expenses
    $653,211
    Contributions
    $219,756
    Grants paid
    $0
  • 2022
    Revenue
    $413,887
    Expenses
    $557,200
    Contributions
    $256,844
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $399,165
    Expenses
    $477,186
    Assets (EOY)
    $11,467,889
  • 2020 · 990

    Revenue
    $399,008
    Expenses
    $426,991
    Assets (EOY)
    $10,718,213
  • 2019 · 990

    Revenue
    $388,953
    Expenses
    $528,574
    Assets (EOY)
    $9,798,383
  • 2018 · 990

    Revenue
    $396,619
    Expenses
    $495,572
    Assets (EOY)
    $8,927,487

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 23 October 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.