Grafton, VA, near Yorktown, was a significant but less-known Civil War spot, mainly important for its railway access during the 1862 Peninsula Campaign; Union troops occupied it, using its rail lines, while nearby Yorktown saw the Siege of Yorktown (Revolutionary War) and Confederate use of caves like Cornwallis Cave for munitions storage, tying the area to both eras, but Grafton itself was primarily a strategic rail hub during the Civil War, not a major battle site like Yorktown.