The Historic Millstream Foundation
The Historic Millstream Foundation is a private foundation focused on Arts, Culture & Humanities, based in Chelmsford, MA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $3.5M in total assets. In 2025, it made $45K in qualifying distributions. Net investment income was $113K.
The Historic Millstream Foundation at a glance
- Total assets
- $3,549,068
- -4.6% vs 2024
- Revenue (2025)
- $142,364
- -10.8% vs 2024
- Qualifying distributions (2025)
- $44,929
- -35.9% vs 2024
- Expenses (2025)
- $76,503
- +6.2% vs 2024
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Qualifying Distributions | Net Investment Income |
|---|---|---|---|---|---|
| 2025 | $3,549,068 | $142,364 | $76,503 | $44,929 | $113,143 |
| 2024 | $3,721,635 | $159,525 | $72,041 | $70,108 | $151,608 |
| 2023 | $3,643,908 | $304,280 | $83,628 | $83,110 | $118,823 |
| 2022 | $3,439,241 | $139,062 | $102,321 | $102,321 | $100,188 |
| 2021 | $3,354,314 | $186,314 | $64,300 | $64,300 | $91,209 |
| 2020 | $3,236,442 | $81,974 | $86,847 | — | $88,945 |
| 2019 | $3,249,306 | $62,626 | $78,570 | — | $86,694 |
Leadership & Key People
Officers and directors from IRS filings
The Historic Millstream Foundation is led by Evelyn S. Thoren, President since 2025 (on filings since 2022); none of the 6 officers listed in 2025 report compensation.
Officers on the 2025 filing
Evelyn S. Thoren
President
Co-President → President, 2025
On filings since 2022
1 hr/week
No compensation reported
Ruth M. Greene
Director
Clerk → Director, 2023
On filings since 2019
1 hr/week
No compensation reported
Samuel P. Chase
Director
Co-President → Director, 2025
On filings since 2021
1 hr/week
No compensation reported
Scott Venier
Director
On filings since 2023
1 hr/week
No compensation reported
Richard H. Donaldson
Treasurer
Vice Treasurer → Treasurer, 2023
On filings since 2022
1 hr/week
No compensation reported
Becky Warren
Clerk
On filings since 2023
1 hr/week
No compensation reported
Former officers (3)
- Former: George Ripsom (2019–2022) — President
- Former: Thomas St Germain (2019–2022) — Treasurer
- Former: David Sperry (2019–2020) — Director
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Historic Millstream Foundation
How large is The Historic Millstream Foundation?
The Historic Millstream Foundation reported $3.5M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $142K.
What is The Historic Millstream Foundation?
The Historic Millstream Foundation is a private foundation focused on Arts, Culture & Humanities, based in Chelmsford, MA. It holds $3.5M in total assets as of 2025.
What is The Historic Millstream Foundation's EIN?
The Historic Millstream Foundation's EIN (Employer Identification Number) is 20-4778662. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS August 26, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 26, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in The Historic Millstream Foundation's focus areas in our free grants database
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