 The memorial is one of eighteen Civil War monuments in Washington, D.C., which were collectively listed on the National Register of Historic Places on September 20, 1978, and the District of Columbia Inventory of Historic Sites on March 3, 1979.It is also designated a contributing property to the Pennsylvania Avenue National Historic Site, established on September 30, 1965.The memorial and surrounding plaza are owned and maintained by the National Park Service, a federal agency of the Interior Department.