 Along with seventeen other Civil War monuments , General Philip Sheridan was added to the National Register of Historic Places ( NRHP ) on September 20 , 1978 , and the District of Columbia Inventory of Historic Sites on March 3 , 1979 . The Sheridan monument is also designated a contributing property to the Massachusetts Avenue Historic District , listed on the NRHP in 1974 , and the Sheridan @-@ Kalorama Historic District , listed on the NRHP in 1989 . The sculpture and the surrounding park are owned and maintained by the National Park Service , a federal agency of the Interior Department . 
