From a press release:
Today, Historic Dumfries Virginia, the non-profit organization that operates the Weems-Botts Museum, announced its participation in the ninth annual Blue Star Museums, a collaboration among the National Endowment for the Arts, Blue Star Families, the Department of Defense, and more than 2,000 museums across America to offer free admission to the nation’s active duty military personnel and their families from Memorial Day through Labor Day. A list of participating museums nationwide is available at arts.gov/bluestarmuseums.