Nonprofit · EIN 04-2203829
LONGYEAR FOUNDATION
Tax-exempt · CHESTNUT HILL, MA 02467
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $9,522,584 | $6,174,089 | $3,348,495 | $89,932,718 | $714,005 | $89,218,713 |
| December 31, 2024 | 990 | $5,141,276 | $5,880,429 | -$739,153 | $85,724,733 | $639,482 | $85,085,251 |
| December 31, 2023 | 990 | $8,558,090 | $5,306,676 | $3,251,414 | $86,823,475 | $1,672,730 | $85,150,745 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $8,331,471
- Membership dues
- $61,535
- Program service revenue
- $171,484
- Investment income
- $992,267
- Net gain from sales of assets
- $555,894
- Net income from sales of inventory
- $27,287
- Other revenue
- $27,362
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $437,305
- Other salaries and wages
- $2,269,409
- Salaries, compensation and benefits (total)
- $3,039,527
- Professional fundraising fees
- $0
- Legal fees
- $12,556
- Accounting fees
- $56,000
- Occupancy
- $949,386
- Travel
- $77,367
- Depreciation
- $1,440,387
- Program services (functional)
- $5,060,219
- Management and general (functional)
- $656,287
- Fundraising (functional)
- $457,583
Balance sheet and other
- Total assets, start of year
- $85,724,733
- Total assets, end of year
- $89,932,718
- Total liabilities, end of year
- $714,005
- Net assets, end of year
- $89,218,713
- Land, buildings and equipment
- $49,810,898
- Net assets without donor restrictions
- $66,788,437
- Net assets with donor restrictions
- $22,430,276
- Gross receipts
- $13,621,148
- Employees
- 46
- Volunteers
- 8
- Year formed
- 1933
- State of legal domicile
- MA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| ERIK L OLSEN | CHIEF OPERATING OFFICER Officer | 40 | $142,412 | $7,335 |
| SANDRA J HOUSTON | PRES. & EXECUTIVE DIRECTOR Officer | 42 | $132,970 | $11,956 |
| ALICE M HUMMER | SEC. & DIR. OF COMMUNICATIONS Officer | 37 | $114,673 | $11,105 |
| RICHARD C GRIER | TRUSTEE/CHAIRMAN Trustee or director, Officer | 10 | $0 | $0 |
| JAMES HERTLEIN | TRUSTEE/VICE CHAIRMAN Trustee or director, Officer | 5 | $0 | $0 |
| HONORABLE JAMES S ROSEBUSH | TRUSTEE/TREASURER Trustee or director, Officer | 10 | $0 | $0 |
| FRANCESCA KARPEL | TRUSTEE Trustee or director | 5 | $0 | $0 |
| DEBORAH THOMPSON MCNEIL | TRUSTEE Trustee or director | 5 | $0 | $0 |
| HENDERSON DALE MILLER | TRUSTEE (UNTIL 1/25) Trustee or director | 5 | $0 | $0 |
990 for the year ended December 31, 2024: 10 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| SANDRA J HOUSTON | PRES. & EXECUTIVE DIRECTOR Officer | 41 | $172,482 | $13,288 |
| ALICE M HUMMER | SEC. & DIR. OF COMMUNICATIONS Officer | 38 | $110,458 | $10,891 |
| DEBORAH WOLD | DIRECTOR OF COLLECTIONS Highest-paid employee | 46 | $103,287 | $5,666 |
| ERIK OLSEN | CHIEF OPERATING OFFICER Officer | 39 | $85,009 | $4,587 |
| RICHARD C GRIER | TRUSTEE/CHAIRMAN Trustee or director, Officer | 10 | $0 | $0 |
| JAMES HERTLEIN | TRUSTEE/VICE CHAIRMAN Trustee or director, Officer | 5 | $0 | $0 |
| HONORABLE JAMES S ROSEBUSH | TRUSTEE/TREASURER Trustee or director, Officer | 10 | $0 | $0 |
| FRANCESCA KARPEL | TRUSTEE Trustee or director | 5 | $0 | $0 |
| DEBORAH THOMPSON MCNEIL | TRUSTEE Trustee or director | 5 | $0 | $0 |
| HENDERSON DALE MILLER | TRUSTEE Trustee or director | 5 | $0 | $0 |
990 for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| SANDRA J HOUSTON | PRES. & EXECUTIVE DIRECTOR Officer | 42 | $128,411 | $11,836 |
| ALICE M HUMMER | SECRETARY & DIR. OF COMMUNICATIONS Officer | 40 | $108,485 | $10,928 |
| RICHARD C GRIER | TRUSTEE/CHAIRMAN Trustee or director, Officer | 10 | $0 | $0 |
| JAMES HERTLEIN | TRUSTEE/VICE CHAIRMAN Trustee or director, Officer | 5 | $0 | $0 |
| HONORABLE JAMES S ROSEBUSH | TRUSTEE/TREASURER Trustee or director, Officer | 10 | $0 | $0 |
| FRANCESCA KARPEL | TRUSTEE Trustee or director | 5 | $0 | $0 |
| DEBORAH THOMPSON MCNEIL | TRUSTEE Trustee or director | 5 | $0 | $0 |
| H REID WAGSTAFF | TRUSTEE (UNTIL 9/2023) Trustee or director | 5 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 1125 BOYLSTON ST, CHESTNUT HILL, MA 02467-1811
- Principal officer (990 for 2025)
- ERIK L OLSEN, 1125 BOYLSTON STREET, CHESTNUT HILL, MA 02467
- Signed the 990
- ERIK L OLSEN, CHIEF OPERATING OFFICER
- Phone
- (617) 278-9000
- Return prepared by
- AAFCPAS INC
Mission
LONGYEAR FOUNDATION IS AN INDEPENDENT HISTORICAL MUSEUM DEDICATED TO ADVANCING THE UNDERSTANDING OF THE LIFE AND WORK OF MARY BAKER EDDY, THE DISCOVERER, FOUNDER, AND LEADER OF CHRISTIAN SCIENCE.
Program accomplishments
- THE COLLECTION AND PRESERVATION OF LITERARY WORKS, ARTIFACTS, AND DOCUMENTS OF MARY BAKER EDDY, FOUNDER OF THE FIRST CHURCH OF CHRIST, SCIENTIST.Expenses $1,056,562
- EVENTS, PROGRAMS AND PUBLICATIONS TO EDUCATE THE PUBLIC ABOUT THE LIFE OF MARY BAKER EDDY.Expenses $1,420,943 · revenue $198,846
- THE PRESERVATION, MAINTENANCE AND EXHIBITING OF HISTORIC HOUSES ONCE OWNED AND OCCUPIED BY MARY BAKER EDDY.Expenses $2,582,714
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 04-2203829
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1933
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Arts, culture and humanities (A800)
- Assets (IRS master file)
- $89,932,718
- Income (IRS master file)
- $13,621,148
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | – | – | – | IRS |
| 990-T | December 2025 | – | – | – | IRS |
| 990 | December 2024 | – | – | – | IRS |
| 990-T | December 2024 | – | – | – | IRS |
| 990 | December 2023 | $8,558,090 | $5,306,676 | $86,823,475 | IRS |
| 990-T | December 2023 | – | – | – | IRS |
| 990 | December 2022 | $3,928,875 | $4,943,510 | $84,457,018 | IRS |
| 990-T | December 2022 | – | – | – | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990-T | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990-T | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS.
Questions about LONGYEAR FOUNDATION
- What is the EIN of LONGYEAR FOUNDATION?
- The employer identification number (EIN) of LONGYEAR FOUNDATION is 04-2203829.
- Is LONGYEAR FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1933.
- Are donations to LONGYEAR FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does LONGYEAR FOUNDATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of LONGYEAR FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did LONGYEAR FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of LONGYEAR FOUNDATION?
- The 990 for the year ended December 31, 2025 names ERIK L OLSEN.
- Who are the officers and directors of LONGYEAR FOUNDATION?
- The 990 for the year ended December 31, 2025 lists 9 people; 3 received compensation from the organization, the highest $142,412 (ERIK L OLSEN, CHIEF OPERATING OFFICER).
- How much revenue does LONGYEAR FOUNDATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $9,522,584, expenses of $6,174,089 and total assets of $89,932,718 at year end.
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