Data update history
May 17, 2026
Updated personnel
Identified 8 new personnel
February 20, 2026
Updated personnel
Identified 1 new personnel
Nonprofit Types
Arts, culture, and humanities nonprofitsMuseumsCharities
Issues
Arts, cultural, and humanitiesEnvironmentHistory
Characteristics
Legally formed as corporationFundraising eventsEndowed supportTax deductible donationsAccepts online donations
General information
- Address
- PO Box 27208
- Washington, DC 20038
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- District of Columbia, DC
- Website URL
- blairhouse.org/Â
- Phone
- (202) 347-1795
IRS details
- EIN
- 52-1401505
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1985
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- A80: Historical Societies, Historical Preservation
- NAICS code, primary
- 7121: Museums, Historical Sites, and Similar Institutions
- Parent/child status
- Independent
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