Mendon Historical Society

  • Mendon, MA
  • Tax-exempt since Feb. 2016
  • EIN: 04-3311399

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: Arts, Culture and Humanities / Historical Societies, Related Historical Activities (NTEE)

Donations to this organization are tax deductible.

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 Sept.
2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$9,437
Expenses
$11,897
Net Income
-$2,460
Net Assets
$476,414
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,636
38.5%
Interest Revenue $1
0.0%
Dividends $4,510
47.8%
Sales of Assets $0
Other Income $1,290
13.7%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $11,891
99.9%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $476,414
Total Liabilities $0
Net Assets $476,414
Compensation
Key Employees and Officers Compensation Other
Ruth O Grady (President) $0 $0
Lynne Roberts (Vice President) $0 $0
Lucinda Bellaires (Secretary) $0 $0
Richard Schofield (Treasurer) $0 $0
Kathleen Schofield (Curator) $0 $0
Ruth Cassinelli (Member) $0 $0
Jane Lowell (Member) $0 $0
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Document Links

990-PF
Filed on Feb. 15, 2026

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Sept.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$4,271
Expenses
$9,915
Net Income
-$5,644
Net Assets
$423,076
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,808
89.2%
Interest Revenue $463
10.8%
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $0
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $423,076
Total Liabilities $0
Net Assets $423,076
Compensation
Key Employees and Officers Compensation Other
Ruth Cassinelli (President) $0 $0
Kathleen Schofield (Vice President) $0 $0
Jane Lowell (Secretary) $0 $0
Richard Schofield (Treasurer) $0 $0
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Document Links

990-PF
Filed on Sept. 29, 2024

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Sept.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$8,684
Expenses
$6,470
Net Income
$2,214
Net Assets
$428,720
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $8,056
92.8%
Interest Revenue $628
7.2%
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $0
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $428,720
Total Liabilities $0
Net Assets $428,720
Compensation
Key Employees and Officers Compensation Other
Joe Bibeault (President) $0 $0
Kathleen Schofield (Vice President) $0 $0
Ruth Cassinelli (Secretary) $0 $0
Richard Schofield (Treasurer) $0 $0
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Document Links

990-PF
Filed on Feb. 3, 2023

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Sept.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$21,711
Expenses
$8,114
Net Income
$13,597
Net Assets
$426,506
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $21,353
98.4%
Interest Revenue $855
3.9%
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $0
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $426,506
Total Liabilities $0
Net Assets $426,506

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending Sept.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$5,075
Expenses
$18,489
Net Income
-$13,414
Net Assets
$418,903
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $4,348
85.7%
Interest Revenue $727
14.3%
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $0
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $418,903
Total Liabilities $0
Net Assets $418,903

Document Links

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Sept.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$5,120
Expenses
$9,311
Net Income
-$4,191
Net Assets
$139,516
Notable Sources of Revenue Percent of Total Revenue
Contributions $420
8.2%
Program Services $3,707
72.4%
Investment Income $678
13.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $139,516
Total Liabilities $0
Net Assets $139,516

Document Links

990-EZ

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

PDF

Fiscal Year Ending Sept.
2016

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-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF
PDF (2 of 3) PDF (3 of 3)

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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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.

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