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.
Public Charity
LONGYEAR FOUNDATION
Based in CHESTNUT HILL, MA, LONGYEAR FOUNDATION operates as a Public Charity. The organization reported $9.5M in revenue, $6.2M in expenses, $89.9M in total assets for fiscal year 2025. Imperigo tracks 31 reported grant relationships connected to this organization totaling approximately $16.0M.
EIN: 042203829
CHESTNUT HILL, MA
Historical Organizations
NTEE: A80
Latest filing: 2025
Total Revenue$9.5M
Total Expenses$6.2M
Total Assets$89.9M
Grant Records31
Funding Total$16.0M
Filing Years2020–2025
Where $100 goes at Longyear Foundation
How Longyear Foundation divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$79
Programs
the work itself
$14
Management
running the organization
$7
Fundraising
raising the next dollar
Inside the $79 for programs
$40
The preservation, maintenance and exhibiting of historic houses once owned and occupied by mary baker eddy
$22
Events, programs and publications to educate the public about the life of mary baker eddy
$17
The collection and preservation of literary works, artifacts, and documents of mary baker eddy, founder of the first church of christ, scientist
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
SUPPORT OF LONGYEAR FOUNDATION.
$908,860
For grant recipient's exempt purposes
$134,200
ARTS, CULTURE & HUMANITIES
$41,825
SUSTAINING SUPPORT
$10,313
FOR RECIPIENT'S EXEMPT PURPOSE
$7,000
Showing up to 5 of 31 total records — full history available with membership.
Officers & Directors
SEC. & DIR. OF COMMUNICATIONS
Alice M Hummer
TRUSTEE
Deborah Thompson Mcneil
CHIEF OPERATING OFFICER
Erik L Olsen
TRUSTEE
Francesca Karpel
TRUSTEE (UNTIL 1/25)
Henderson Dale Miller
TRUSTEE/TREASURER
Honorable James S Rosebush
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $9.5M | $6.2M | $89.9M |
| 2024 | $5.1M | $5.9M | $85.7M |
| 2023 | $8.6M | $5.3M | $86.8M |
| 2022 | $3.9M | $4.9M | $84.5M |
| 2020 | $16.7M | $4.2M | $85.8M |
Between 2020 and 2025, reported annual revenue declined from $16.7M to $9.5M (-43%), with total assets most recently reported at $89.9M.
Interactive year-over-year charts and full filing details available with membership.