Free
National POW/MIA Recognition Day – Free Admission All Weekend
Clara Barton Missing Soldiers Office Museum 437 7th Street NW, Washington, United StatesIn honor of National POW/MIA Recognition Day, the Clara Barton Missing Soldiers Office Museum is offering FREE admission on September 19 - September 21.
Commemoration of the Sinking of the Black Diamond
St. Clements Island Museum 38370 Point Breeze Road, Coltons Point, MD, United StatesHead to St. Clement’s Island Museum for a weekend of activities commemorating a forgotten tragedy of the American Civil War, the Black Diamond Disaster.