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Shannondale Mahogany Swim Club Inc 2510 Tattersall Road

  • Portage, MI
  • Tax-exempt since July 1963
  • EIN: 38-6067039

Organization summary

Type of Nonprofit

Designated as a Social and recreational clubs.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$136k (2025)

Expenses
$127k (2025)

Total Assets
$102k (2025)

Total Liabilities
$0 (2025)

Source: Form 990 tax filings from 2012 to 2025

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 March
2025

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$135,973
Expenses
$126,859
Net Income
$9,114
Net Assets
$101,768
Notable Sources of Revenue Percent of Total Revenue
Contributions $112,014
82.4%
Program Services $18,742
13.8%
Investment Income $3,784
2.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $1,433
1.1%
Assets/Debt
Total Assets $101,768
Total Liabilities $0
Net Assets $101,768
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $3,784
Compensation
Key Employees and Officers Compensation Other
George Schumacher (President) $0 $0
Michelle Bishop (Treasurer) $0 $0
Shelby Lathrop (Personnel) $0 $0
Kristin Hammond (Membership) $0 $0
Nichol Garnsay (Treasurer) $0 $0
Karen Gallegher (Membership) $0 $0
Patrick Young (Facilities) $0 $0
Tammy Karmon Hoffman (Secretary) $0 $0
Dave Begnoche (Facilities) $0 $0
Ted Crook (Facilities) $0 $0
Vanessa Cummings (Events) $0 $0
Jenna Teachout (Events) $0 $0
+ View more people

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990-EZ
Filed on Aug. 11, 2025

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending March
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$118,703
Expenses
$126,613
Net Income
-$7,910
Net Assets
$92,654
Notable Sources of Revenue Percent of Total Revenue
Contributions $102,701
86.5%
Program Services $12,338
10.4%
Investment Income $1,966
1.7%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $1,698
1.4%
Assets/Debt
Total Assets $92,654
Total Liabilities $0
Net Assets $92,654
Club or Co-Op Income
Initiation Fees & Contributions $1,698
Income From Public Use of Club Facilities $5,345
Compensation
Key Employees and Officers Compensation Other
George Schumacher (President) $0 $0
Michelle Bishop (Treasurer) $0 $0
Shelby Lathrop (Personnel) $0 $0
Kristin Hammond (Membership) $0 $0
Nichol Garnsay (Treasurer) $0 $0
Karen Gallegher (Membership) $0 $0
Patrick Young (Facilities) $0 $0
Tammy Karmon Hoffman (Secretary) $0 $0
Dave Begnoche (Facilities) $0 $0
Ted Crook (Facilities) $0 $0
Vanessa Cummings (Events) $0 $0
Jenna Teachout (Events) $0 $0
+ View more people

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990-EZ
Filed on July 15, 2025

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending March
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$130,099
Expenses
$114,886
Net Income
$15,213
Net Assets
$100,564
Notable Sources of Revenue Percent of Total Revenue
Contributions $118,632
91.2%
Program Services $8,633
6.6%
Investment Income $1,039
0.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $1,795
1.4%
Assets/Debt
Total Assets $100,564
Total Liabilities $0
Net Assets $100,564
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $5,114
Compensation
Key Employees and Officers Compensation Other
George Schumacher (President) $0 $0
Chrissy Brege (Secretary) $0 $0
Michelle Bishop (Treasurer) $0 $0
David Florida (Facilities) $0 $0
Deanna Nellenbach (Personnel) $0 $0
Kristin Hammond (Membership) $0 $0
Nicholas Quinnel (Treasurer) $0 $0
Karen Gallegher (Membership) $0 $0
Patrick Young (Facilities) $0 $0
Shelby Lathrop (Personnel) $0 $0
Tammy Karmon Hoffman (Secretary) $0 $0
Selena Cressman (Communicatio) $0 $0
Jenna Teachout (Events) $0 $0
+ View more people

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990-EZ
Filed on Aug. 15, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending March
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$111,153
Expenses
$115,912
Net Income
-$4,759
Net Assets
$85,351
Notable Sources of Revenue Percent of Total Revenue
Contributions $321
0.3%
Program Services $108,355
97.5%
Investment Income $282
0.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,195
2.0%
Assets/Debt
Total Assets $85,351
Total Liabilities $0
Net Assets $85,351
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
George Schumacher (President) $0 $0
Chrissy Brege (Secretary) $0 $0
Michelle Bishop (Treasurer) $0 $0
Kari Keith (Treasurer) $0 $0
Andy Devisser (Past Treasur) $0 $0
Kristin Corra (Past Ast Tre) $0 $0
David Florida (Facilities) $0 $0
Deanna Nellenbach (Personnel) $0 $0
Margaret Hesketh (Personnel) $0 $0
Kristin Hammond (Membership) $0 $0
Leighanne Waltemyer (Assistant Me) $0 $0
Renae Voshel (Member At La) $0 $0
+ View more people

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990-EZ
Filed on Aug. 15, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending March
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$11,148
Expenses
$20,100
Net Income
-$8,952
Net Assets
$90,110
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,757
24.7%
Program Services $6,634
59.5%
Investment Income $924
8.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $833
7.5%
Assets/Debt
Total Assets $90,110
Total Liabilities $0
Net Assets $90,110
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
George Schumacher (President) $0 $0
Bill Gieseler (Former Presi) $0 $0
Chrissy Brege (Secretary) $0 $0
Andrew Devisser (Treasurer) $0 $0
Kristin Corra (Assistant Tr) $0 $0
Stacy Devisser (Facilities D) $0 $0
David Florida (Assistant Fa) $0 $0
Deanna Nellenbach (Personnel) $0 $0
Margaret Hesketh (Assistant Pe) $0 $0
Kristin Hammond (Membership) $0 $0
+ View more people

Document Links

990-EZ
Filed on June 7, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$114,260
Expenses
$135,782
Net Income
-$21,522
Net Assets
$99,062
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $110,869
97.0%
Investment Income $1,026
0.9%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $997
0.9%
Other Revenue $1,368
1.2%
Assets/Debt
Total Assets $99,062
Total Liabilities $0
Net Assets $99,062
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Bill Gieseler (President) $0 $0
Andrew Devisser (Treasurer) $0 $0
Chrissy Brege (Secretary) $0 $0
Kristin Cora (Assistant Tr) $0 $0
Deanna Nellenbach (Personnel) $0 $0
Kristin Hammond (Assistant Me) $0 $0
Mimi Otto (Membership) $0 $0
Margaret Hesketh (Assistant Pe) $0 $0
George Schumacher (Assistant Fa) $0 $0
Stacy Devisser (Facilities D) $0 $0
+ View more people

Document Links

990-EZ
Filed on June 9, 2020

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$119,046
Expenses
$120,079
Net Income
-$1,033
Net Assets
$120,584
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $114,858
96.5%
Investment Income $976
0.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,013
0.9%
Other Revenue $2,199
1.8%
Assets/Debt
Total Assets $120,584
Total Liabilities $0
Net Assets $120,584
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Janean Gieseler (President) $0 $0
Bill Gieseler (Vice Preside) $0 $0
Andrew Devisser (Treasurer) $0 $0
Chrissy Brege (Secretary) $0 $0
Mimi Otto (Membership) $0 $0
Kristin Hammond (Assistant Me) $0 $0
Kathleen Rafferty (Former Treas) $0 $0
Jeslyn Gordon (Personnel) $0 $0
Julie Staffen (Assistant Pe) $0 $0
George Schumacher (Facilities) $0 $0
+ View more people

Document Links

990-EZ
Filed on May 10, 2019

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$115,907
Expenses
$119,881
Net Income
-$3,974
Net Assets
$121,617
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $111,901
96.5%
Investment Income $906
0.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,474
1.3%
Other Revenue $1,626
1.4%
Assets/Debt
Total Assets $121,617
Total Liabilities $0
Net Assets $121,617
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Janean Gieseler (Former Treas) $0 $0
Bill Gieseler (President) $0 $0
Andy Devisser (Treasurer) $0 $0
Mimi Otto (Membership) $0 $0
Kristin Hammond (Assistant Me) $0 $0
Jaimie Grodecki (Vice Preside) $0 $0
Kathleen Rafferty (Former Treas) $0 $0
Chrissy Brege (Secretary) $0 $0
Erika Dodde (Personnel) $0 $0
Jeslyn Gordon (Personnel) $0 $0
+ View more people

Document Links

990-EZ
Filed on June 28, 2018

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$119,452
Expenses
$119,909
Net Income
-$457
Net Assets
$125,591
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $115,275
96.5%
Investment Income $938
0.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,297
1.1%
Other Revenue $1,942
1.6%
Assets/Debt
Total Assets $125,591
Total Liabilities $0
Net Assets $125,591
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Bill Gieseler (President) $0 $0
Janean Gieseler (Treasurer) $0 $0
Jaimie Grodecki (Vice Preside) $0 $0
Kathleen Rafferty (Treasurer) $0 $0
Erika Dodde (Personnel) $0 $0
Jeslyn Gordon (Personnel) $0 $0
Adam Hadd (Assistant Fa) $0 $0
Patti King (Secretary) $0 $0
Kristin Hammond (Assistant Me) $0 $0
Mimi Otto (Membership) $0 $0
+ View more people

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990-EZ
Filed on July 19, 2017

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$119,962
Expenses
$142,909
Net Income
-$22,947
Net Assets
$126,048
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $115,828
96.6%
Investment Income $1,052
0.9%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $985
0.8%
Other Revenue $2,097
1.7%
Assets/Debt
Total Assets $126,048
Total Liabilities $0
Net Assets $126,048
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Bill Gieseler (President) $0 $0
Patti King (Secretary) $0 $0
Janean Gieseler (Treasurer) $0 $0
Jeslyn Gordon (Personnel) $0 $0
Erika Dodde (Asst Personn) $0 $0
Mimi Otto (Membership) $0 $0
Rob Dodde (Facilities) $0 $0
Kathy Rafferty (Asst Facilit) $0 $0
+ View more people

Document Links

990-EZ
Filed on Aug. 5, 2016

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML
PDF (2 of 2)

Fiscal Year Ending March
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$124,377
Expenses
$123,904
Net Income
$473
Net Assets
$148,995
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $119,108
95.8%
Investment Income $1,041
0.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,835
1.5%
Other Revenue $2,393
1.9%
Assets/Debt
Total Assets $148,995
Total Liabilities $0
Net Assets $148,995
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Bill Gieseler (President) $0 $0
Amy Stephani (Vice Preside) $0 $0
Ann Webster (Secretary) $0 $0
Janean Gieseler (Treasurer) $0 $0
Mike Stephani (Asst Treasur) $0 $0
Jeslyn Gordon (Personnel) $0 $0
Erika Dodde (Asst Personn) $0 $0
Mimi Otto (Membership) $0 $0
Patti King (Membership) $0 $0
Rob Dodde (Facilities) $0 $0
+ View more people

Document Links

990-EZ
Filed on July 21, 2015

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$118,668
Expenses
$124,555
Net Income
-$5,887
Net Assets
$148,522
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $115,970
97.7%
Investment Income $744
0.6%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,854
1.6%
Other Revenue $100
0.1%
Assets/Debt
Total Assets $148,522
Total Liabilities $0
Net Assets $148,522
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Other
Bill Gieseler (President) $0 $0
Janean Gieseler (Treasurer) $0 $0
Mimi Otto (Membership) $0 $0
Jeslyn Gordon (Personnel) $0 $0
Amy Stephani (Vice President) $0 $0
Rob Dodde (Facilities) $0 $0
Ann Webster (Secretary) $0 $0
+ View more people

Document Links

990-EZ
Filed on Aug. 4, 2014

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$118,257
Expenses
$117,591
Net Income
$666
Net Assets
$152,241
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $114,340
96.7%
Investment Income $573
0.5%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,718
1.5%
Other Revenue $1,626
1.4%
Assets/Debt
Total Assets $152,241
Total Liabilities $0
Net Assets $152,241
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ
Filed on Nov. 20, 2013

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$112,710
Expenses
$167,491
Net Income
-$54,781
Net Assets
$151,575
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $109,318
97.0%
Investment Income $361
0.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,447
1.3%
Other Revenue $1,584
1.4%
Assets/Debt
Total Assets $151,575
Total Liabilities $0
Net Assets $151,575
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2011

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2006

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is 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.

Which Organizations Are Here?

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 »

Get the Data

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.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • 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.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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