Isle Royale Natural History Association
Partner with the National Park Service to promote public understanding, appreciation, enjoyment and protection of the natural and cultural resources of Isle Royale National Park and Keweenaw National Historical Park through education, outreach and research. This is accomplished by providing high-quality interpretive products and programs, supporting the parks' interpretive, preservation, conservation and research activities.
Isle Royale Natural History Association at a glance
In short: Isle Royale Natural History Association reported $58K in grants paid in 2024 (a total; its filing lists no individual grants). Source: 2024 IRS Form 990.
- Grants paid (2024)
- $58,255 — reported as a total on the IRS filing, without an itemized list
- +48.1% vs 2023
- Total assets
- $743,642
- +3.2% vs 2023
- Revenue (2024)
- $239,230
- -10.6% vs 2023
- Net investment income (2024)
- $10,626
- +5.6% vs 2023
- Expenses (2024)
- $232,716
- +24.3% vs 2023
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated September 2026.
Who Isle Royale Natural History Association funds
How this funder distributes its grants
Grant Size Distribution
2 grants across all recorded years
The most common grant size was under $50K: 2 grants of 2 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
How Isle Royale Natural History Association gives
- Giving held roughly steady from 2019 to 2022 (−15%). Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2024, annual grant giving ranged from $10K (2021) to $58K (2024). In 2024 it reported $58K in grants paid, as a total without an itemized list.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Isle Royale National Park Houghton, MI | Aid to Parks grants to Isle Royale National Park funded the following projects: a seasonal interpretive position at the Rock Harbor visitor center; printing the 2022 Greenstone newspaper which provides detailed park information to the visiting public; reprinting the Rock Harbor area guide; materials and travel funding for seasonal interpretive training; and badges for the Junior Ranger program. | $26,750 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2024 | $743,642 | $239,230 | $232,716 | $58,255 | Total only | $10,626 |
| 2023 | $720,662 | $267,731 | $187,227 | $39,339 | Total only | $10,065 |
| 2022 | $617,983 | $231,822 | $184,361 | $26,750 | 1 | $8,818 |
| 2021 | $740,208 | $556,336 | $116,201 | $9,939 | 1 | $2,538 |
| 2020 | $293,689 | $76,055 | $48,237 | — | — | — |
| 2019 | $275,197 | $183,136 | $154,669 | $31,512 | 2 | $333 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About Isle Royale Natural History Association
Based on IRS filings
Isle Royale Natural History Association is a public charity focused on Environment & Animals, based in Houghton, MI. IRS filing data is available from 2019 through 2024. As of 2024, the organization holds $744K in total assets. In 2024, it reported $58K in grants paid as a total on its IRS filing, without an itemized list. Net investment income was $11K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Isle Royale Natural History Association is led by Sandra Wilhoit, President & CEO since 2023 (on filings since 2019); 2 of 11 officers listed in 2024 are compensated.
Officers on the 2024 filing
Sandra Wilhoit
President & CEO
Director → President & CEO, 2023
On filings since 2019
2.5 hrs/week
No compensation reported
Mark Wilcox
Executive Director
Executive Di → Executive Director, 2022
On filings since 2021
40 hrs/week
$7K (2021) → $59K (2024)
Alison Pontynen
Director
Retail Sales Manager → Director, 2024
On filings since 2020
1 hr/week
$7K (2020) → $0 (2024)
Alan West
Director
On filings since 2019
1 hr/week
No compensation reported
Steven Trynoski
Director
On filings since 2019
1 hr/week
No compensation reported
Marilyn Cooper
Director
On filings since 2020
2 hrs/week
No compensation reported
Elizabeth Barrie
Director
On filings since 2021
1.5 hrs/week
No compensation reported
Kristen Raisenen Schourek
Director
On filings since 2022
1 hr/week
No compensation reported
Michael George
Director
On filings since 2023
1 hr/week
No compensation reported
Sharon Kisiel
Retail Sales Manager
Retail Manager → Retail Manger, 2023
Retail Manger → Retail Sales Manager, 2024
On filings since 2022
40 hrs/week
$36K (2022) → $46K (2024)
Emily Dekker-Fiala
Secretary-Treasurer
Secreatary-Treasurer → Secretary-Treas, 2023
Secretary-Treas → Secretary-Treasurer, 2024
On filings since 2019
3 hrs/week
No compensation reported
Former officers (11)
- Former: Vic Foerster (2021–2023) — Vice President
- Former: Kay Pusakulich (2019–2022) — President
- Former: Sonia Goltz (2020–2022) — Director
- Former: Emily Dekker- Fiala (2021) — Treasurer
- Former: Sandy Wilhoit (2021) — Director
- Former: Dan Rogalla (2019–2020) — Director
- Former: Darcy Rutkowski (2019–2020) — Secretary, Treasurer & Executive Committee
- Former: Susanna Ausema (2020) — Membership Outreach Manager
- Former: Kristine Bradof (2019) — Executive Director
- Former: Linda Guiliani (2019) — Director
- Former: Lynn Bjorkman (2019) — Board President & Executive Committee
Data from IRS Form 990 filings, 2019–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $59K, to Mark Wilcox (Executive Director). 2 officers or directors reported compensation on that filing.
Frequently asked questions about Isle Royale Natural History Association
How much does Isle Royale Natural History Association give each year?
Isle Royale Natural History Association reported $58K in grants paid in 2024 on its 2024 IRS Form 990, as a total without an itemized list of grants. In 2023 it reported $39K in grants paid.
How large is Isle Royale Natural History Association?
Isle Royale Natural History Association reported $744K in total assets on its 2024 IRS Form 990. Its revenue that year was $239K.
What is Isle Royale Natural History Association?
Isle Royale Natural History Association is a public charity focused on Environment & Animals, based in Houghton, MI. It holds $744K in total assets as of 2024.
Where does Isle Royale Natural History Association operate?
Isle Royale Natural History Association has awarded grants in Michigan.
What is Isle Royale Natural History Association's EIN?
Isle Royale Natural History Association's EIN (Employer Identification Number) is 38-6156566. IRS Form 990 filing data is available on this page for 2019–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-EZ for fiscal year 2020 (received by the IRS November 10, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS November 3, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS November 15, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS November 13, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS November 14, 2025)
- IRS filings on file for fiscal years 2019–2024
Live grants for the work Isle Royale Natural History Association funds
Environment & Animals Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Isle Royale Natural History Association's focus areas in our free grants database
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