Fort Lesley J. McNair in the context of "Washington Channel"

In the United States, the National War College (NWC) is a school within the National Defense University. It is housed in Roosevelt Hall on Fort Lesley J. McNair, Washington, D.C., the third-oldest Army post still active.

A gallows (or less precisely scaffold) is a frame or elevated beam, typically wooden, from which objects can be suspended or "weighed". Gallows were thus widely used to suspend public weighing scales for large and heavy objects such as sacks of grain or minerals, usually positioned in markets or toll gates. The term was also used for a projecting framework from which a ship's anchor might be raised so it is no longer sitting on the seabed, riverbed or dock; "weighing [the] anchor" meant raising it using this apparatus while avoiding striking the ship's hull.

In modern usage the term has come to mean almost exclusively a scaffold or gibbet used for execution by hanging.

David Edgar Herold (June 16, 1842 – July 7, 1865) was an American pharmacist's assistant and accomplice of John Wilkes Booth in the assassination of Abraham Lincoln on April 14, 1865. After the shooting, Herold accompanied Booth to the home of Samuel Mudd, who set Booth's injured leg. The two men then continued their escape through Maryland and into Virginia, and Herold remained with Booth until the authorities cornered them in a barn. Herold surrendered, but Booth was shot to death by Sergeant Boston Corbett. Herold was tried by a military tribunal, sentenced to death for conspiracy, and hanged with three other conspirators at the Washington Arsenal, now known as Fort Lesley J. McNair.