13-inch mortars Battery No. 4 at south end, Yorktown, Virginia. May 1862.

Major Strong Bomb-proof quarters with two African American soldiers in front, Dutch Gap, Virginia. …

Prof. Thaddeus S. Lowe observing the battle from his balloon "Intrepid" at Fair Oaks, Virginia, May …

Destroyed bridge at Cub Run, Virginia. March 1862.

Federal cavalry at Sudley Ford, Bull Run, Va. March 1862.

Photograph from the main eastern theater of war, First Bull Run, July 1861.

Piles of solid shot and canisters in the arsenal grounds next to Richmond & Petersburg Railroad brid…

Wagon train of Military Telegraph Corps. Richmond, Virginia. June 1865.

View from signal tower at Petersburg, Virginia. 1863.

Signal Tower at Cobb's Hill near New Market, Virginia. 1864.

Blockhouse near Aqueduct Bridge, Arlington Heights, Virginia.

 View of the burned district and Capitol across the Canal Basin, Richmond, Virginia. 1865.

Inspection of troops at Cumberlanding, Pamunkey, Virginia

Dead Confederate soldier in trench at Fort Mahone, Petersburg, Va., April 3, 1865.

Confederate Ram Atlanta after being captured, James River, VA. 1863.

Port Royal Island, S.C. Coosaw Ferry battleground of January 1, 1862, in the distance.

Sutler's bomb-proof shelter "Fruit and Oyster House" at Petersburg, Va. "Sutlers" were the merchants…

A 12-pound Howitzer gun captured by "Butterfield's Brigade" near Hanover Court House, The Peninsula,…

Two houses on battlefield with 32-pound field howitzer in foreground Seven Pines, Va.

Interior of Fort Sumter with gabions at Charleston, S.C.

Dead Confederate soldier in trench beyond a section of chevaux-de-frise, Petersburg, Va. April 3, 18…

African Americans collecting bones of soldiers killed in the battle at Cold Harbor, Va.

Federal soldiers removing artillery from Confederate fortifications at Petersburg, Virginia. April 1…

Crew of U.S. Army gunboat with General Foster troops ashore with howitzers at Point of Rocks, Virgin…