The American Civil War (also known by other names) was a war fought in the United States from 1861 to 1865.
Manassas Park is an independent city in the U.S. state of Virginia.
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation for their historical significance.
Prince William County is a county on the Potomac River in the Commonwealth of Virginia in the United States.
A redoubt (historically redout) is a fort or fort system usually consisting of an enclosed defensive emplacement outside a larger fort, usually relying on earthworks, although some are constructed of stone or brick.