The Hillside Historical Society Incorporated
Public records show a registered, tax-exempt organization in good standing.
What it says it does
HISTORICAL & EDUCATIONAL INFORMATION
- Income
- $20,090
- Spending
- $17,277
- Reserves
- Over 10 years of spending
- Largest source of income
- other income, 61%
Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Financial health
We do not score finances when yearly spending is very small or the return has too little detail. The ratios stop meaning much at that size.
Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Governance
This organization files the short tax form, which does not ask about boards, policies or audits. That is normal for a small charity and is not a mark against it.
Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Impact evidence
Describes programs. Its tax return describes what it does but we have found no measurable results in it.
Programs described in its return (3)
- FORM 990-EZ PART III LINE 28 - FIRST ACCOMPLISHMENT WOODRUFF HOUSE EATON STORE MUSEUM IS OPEN TO THE GENERAL PUBLIC DURING THE YEAR TO PROVIDE HISTORICAL EDUCATION WHICH IS CONTAINED IN THE MUSEUM AND PROVIDE EDUCATION ABOUT OUR LOCAL AREAS HISTORY. THE MUSEUM IS STAFFED BY ALL VOLUNTEER MEMBERS BELONGING TO THE ORGANIZATION. APPROXIAMATELY 440 VISITORS ANNUALLY.
- FORM 990-EZ PART III LINE 29 - SECOND ACCOMPLISHMENT SCHOOL STUDENT TOURS & PRIVATE TOURS OF THE MUSEUM ENABLE THE ORGANIZATION TO EDUCATE STUDENTS & GENERAL PUBLIC ABOUT THE HISTORICAL SIGNIFICANCE OF THE BUILDING AND OUR COLONIAL HERITAGE,APPROXIAMTELY 265 INDIVIDUALS ATTENDED. THE TOURS ARE CONDUCTED BY THE ORGANIZATIOIN VOLUNTEER MEMBERS AT NO COST TO THE GENERAL PUBLIC.
- FORM 990-EZ PART III LINE 30 THIRD ACCOMPLISHMENT THE FOUR CENTURIES TOUR IN A WEEKEND PROGRAM WAS AN OPEN HOUSE TO THE GENERAL PUBLIC WHICH ALLOWED ALL PARTICIPANTS TO BECOME FULLY AWARE OF OUR AREAS RICH HISTORY AND EDUCATE THE COMMUNITY OF THE SIGNIFICANT PART OUR COMMUNITY PLAYED IN THE FOUNDING OF OUR COUNTRY. APPROXIAMATELY 260 VISITORS ATTENDED. THE TOURS OF THE BUILDING & GROUNDS WERE CONDUCTED BY THE ORGANIZATION VOLUNTEER MEMBERS AT NO COST TO THE PUBLIC
Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Legitimacy checks
Is it registered with the IRS? Passed.
Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Has the IRS revoked its tax-exempt status? Passed.
Not on the IRS automatic revocation list.
Source: Automatic revocation of exemption list, Internal Revenue Service, file dated October 13, 2026.
Are donations tax-deductible? Passed.
On the IRS list of organizations eligible to receive tax-deductible contributions.
Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.
Is it keeping up with its IRS filings? Passed.
Most recent return on file covers the year ending December 2025.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since February 1978.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.
Is it in good standing with state regulators? Passed.
Not on California's list of charities barred from soliciting. Other states are not yet checked.
Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 21, 2026.
Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.