Data update history
January 3, 2025
Updated personnel
Identified 1 new personnel
January 1, 2025
Posted financials
Added Form 990N for fiscal year 2024
December 1, 2023
Posted financials
Added Form 990N for fiscal year 2023
December 1, 2022
Posted financials
Added Form 990N for fiscal year 2022
August 1, 2021
Posted financials
Added Form 990N for fiscal year 2021
Nonprofit Types
Civic / social organizationsArts, culture, and humanities nonprofitsChapter / child organizations
Issues
Arts, cultural, and humanitiesHistory
Characteristics
State / local levele-Postcard filer
General information
- Address
- 1629 K St NW Ste 300
- Washington, DC 20006
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- District of Columbia, DC
IRS details
- EIN
- 61-1797217
- Fiscal year end
- May
- Taxreturn type
- Form 990-N / Postcard
- Year formed
- 1955
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- A80: Historical Societies, Historical Preservation
- NAICS code, primary
- 813410: Civic and Social Organizations
- Parent/child status
- Child within group exemption
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