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Madeline Island Wilderness Preserve

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Environmental Quality, Protection and Beautification / Land Resources Conservation (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$101k (2023)

Expenses
$73.8k (2023)

Total Assets
$2.28M (2023)

Total Liabilities
$0 (2023)

Source: Form 990 tax filings from 2011 to 2023

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$100,740
Expenses
$73,756
Net Income
$26,984
Net Assets
$2,277,320
Notable Sources of Revenue Percent of Total Revenue
Contributions $78,701
78.1%
Program Services $0
Investment Income $15,580
15.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $6,459
6.4%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,277,320
Total Liabilities $0
Net Assets $2,277,320
Compensation
Key Employees and Officers Compensation Related Other
Tom Atmore (Director) $0 $0 $0
Bake Baker (Director) $0 $0 $0
Kevin Dooley (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Secretary) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Pixie Martin (Vice Preside) $0 $0 $0
Bonnie Matuseski (President) $0 $0 $0
Steven Mueller (Director) $0 $0 $0
Marnie Sanborn Myhre (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$68,430
Expenses
$55,415
Net Income
$13,015
Net Assets
$2,197,835
Notable Sources of Revenue Percent of Total Revenue
Contributions $48,415
70.8%
Program Services $0
Investment Income $12,009
17.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $8,006
11.7%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,197,835
Total Liabilities $0
Net Assets $2,197,835
Compensation
Key Employees and Officers Compensation Related Other
Tom Atmore (Director) $0 $0 $0
Kevin Dooley (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Secretary) $0 $0 $0
Fred Koerschner (Director) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Pixie Martin (Vice Preside) $0 $0 $0
Bonnie Matuseski (President) $0 $0 $0
Steven Mueller (Director) $0 $0 $0
Marnie Sanborn Myhre (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$168,151
Expenses
$47,477
Net Income
$120,674
Net Assets
$2,301,461
Notable Sources of Revenue Percent of Total Revenue
Contributions $116,137
69.1%
Program Services $0
Investment Income $16,381
9.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $35,633
21.2%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,301,461
Total Liabilities $0
Net Assets $2,301,461
Compensation
Key Employees and Officers Compensation Related Other
Tom Atmore (Director) $0 $0 $0
Kevin Dooley (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Secretary) $0 $0 $0
Fred Koerschner (Director) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Pixie Martin (Director) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Steven Mueller (President) $0 $0 $0
Marnie Sanborn Myhre (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$58,946
Expenses
$24,230
Net Income
$34,716
Net Assets
$2,164,431
Notable Sources of Revenue Percent of Total Revenue
Contributions $34,974
59.3%
Program Services $0
Investment Income $11,490
19.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $11,913
20.2%
Net Inventory Sales $0
Other Revenue $569
1.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,164,431
Total Liabilities $0
Net Assets $2,164,431
Compensation
Key Employees and Officers Compensation Related Other
Tom Atmore (Secretary) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Fred Koerschner (Director) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Pixie Martin (Director) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Steven Mueller (President) $0 $0 $0
Marnie Sanborn Myhre (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$60,562
Expenses
$38,522
Net Income
$22,040
Net Assets
$2,087,286
Notable Sources of Revenue Percent of Total Revenue
Contributions $40,625
67.1%
Program Services $0
Investment Income $10,799
17.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $9,047
14.9%
Net Inventory Sales $0
Other Revenue $91
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,087,286
Total Liabilities $0
Net Assets $2,087,286
Compensation
Key Employees and Officers Compensation Related Other
Tom Atmore (Secretary) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Fred Koerschner (Director) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Pixie Martin (Director) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Steven Mueller (President) $0 $0 $0
Marnie Myhre (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$115,659
Expenses
$29,677
Net Income
$85,982
Net Assets
$2,012,159
Notable Sources of Revenue Percent of Total Revenue
Contributions $90,650
78.4%
Program Services $0
Investment Income $8,926
7.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $15,828
13.7%
Net Inventory Sales $0
Other Revenue $255
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,012,159
Total Liabilities $0
Net Assets $2,012,159
Compensation
Key Employees and Officers Compensation Related Other
Adam Haecker (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Fred Koerschner (President) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Steven Mueller (Vicer Presid) $0 $0 $0
Pixie Martin (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Tom Atmore (Secretary) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$261,487
Expenses
$25,329
Net Income
$236,158
Net Assets
$1,974,212
Notable Sources of Revenue Percent of Total Revenue
Contributions $238,720
91.3%
Program Services $0
Investment Income $7,367
2.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $15,400
5.9%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,974,212
Total Liabilities $0
Net Assets $1,974,212
Compensation
Key Employees and Officers Compensation Related Other
Adam Haecker (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Fred Koerschner (President) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Steven Mueller (Vicer Presid) $0 $0 $0
Pixie Martin (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Tom Atmore (Secretary) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$53,201
Expenses
$25,603
Net Income
$27,598
Net Assets
$1,708,182
Notable Sources of Revenue Percent of Total Revenue
Contributions $45,168
84.9%
Program Services $0
Investment Income $5,546
10.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $2,487
4.7%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,708,182
Total Liabilities $0
Net Assets $1,708,182
Compensation
Key Employees and Officers Compensation Related Other
Adam Haecker (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (Director) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Fred Koerschner (President) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Steven Mueller (Vicer Presid) $0 $0 $0
Pixie Martin (Director) $0 $0 $0
Ned Hancock (Treasurer) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Tom Atmore (Secretary) $0 $0 $0
Henry Harmon (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$35,709
Expenses
$36,179
Net Income
-$470
Net Assets
$1,668,923
Notable Sources of Revenue Percent of Total Revenue
Contributions $43,320
> 100%
Program Services $0
Investment Income $6,986
19.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$14,597
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,668,923
Total Liabilities $0
Net Assets $1,668,923
Compensation
Key Employees and Officers Compensation Related Other
Adam Haecker (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (President) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Fred Koerschner (Vice Preside) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Steven Mueller (Treasurer) $0 $0 $0
Pixie Martin (Secretary) $0 $0 $0
Ned Hancock (Director) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Tom Atmore (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$94,640
Expenses
$53,767
Net Income
$40,873
Net Assets
$1,688,001
Notable Sources of Revenue Percent of Total Revenue
Contributions $45,380
48.0%
Program Services $0
Investment Income $9,213
9.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $40,047
42.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,688,001
Total Liabilities $0
Net Assets $1,688,001
Compensation
Key Employees and Officers Compensation Related Other
Adam Haecker (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (President) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Fred Koerschner (Vice Preside) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Steven Mueller (Treasurer) $0 $0 $0
Pixie Martin (Secretary) $0 $0 $0
Ned Hancock (Director) $0 $0 $0
Jane Howard (Director) $0 $0 $0
Tom Atmore (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$46,280
Expenses
$27,903
Net Income
$18,377
Net Assets
$1,706,297
Notable Sources of Revenue Percent of Total Revenue
Contributions $19,466
42.1%
Program Services $0
Investment Income $7,279
15.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $19,535
42.2%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,706,297
Total Liabilities $0
Net Assets $1,706,297
Compensation
Key Employees and Officers Compensation Related Other
Adam Haecker (Director) $0 $0 $0
Daniel Engstrom (Director) $0 $0 $0
Victoria Erhart (President) $0 $0 $0
Bonnie Matuseski (Director) $0 $0 $0
Phil Greenberg (Director) $0 $0 $0
Fred Koerschner (Vice Preside) $0 $0 $0
Tom Kromroy (Director) $0 $0 $0
Steven Mueller (Treasurer) $0 $0 $0
Pixie Martin (Secretary) $0 $0 $0
Ned Hancock (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$34,777
Expenses
$14,602
Net Income
$20,175
Net Assets
$1,648,515
Notable Sources of Revenue Percent of Total Revenue
Contributions $20,260
58.3%
Program Services $0
Investment Income $10,274
29.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $4,243
12.2%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,648,515
Total Liabilities $0
Net Assets $1,648,515

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$3,624
Expenses
$23,932
Net Income
-$20,308
Net Assets
$1,591,814
Notable Sources of Revenue Percent of Total Revenue
Contributions $21,468
> 100%
Program Services $0
Investment Income $9,911
> 100%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$27,755
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,591,814
Total Liabilities $0
Net Assets $1,591,814

Document Links

Fiscal Year Ending Dec.
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2001

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

About This Data

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

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Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

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For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
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  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
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