The Battle of Fort Stevens was fought in Washington, DC on 11 and 12 July, 1864. The fort was part of the defenses of the capital. As the map shows, Jubal Early's small army corps had marched from Lynchburg, Virginia all the way down (north) the Shenandoah Valley, circled through Maryland and approached Washington from the north. The fort was five miles from the White House. Brigadier General Claude Devereux, USV, who appears in this tale is a Confederate agent.
I wrote my own description of this engagement in my novel, "Down the Sky." I hope you enjoy it. pl