Burial of the Union dead at Fredericksburg, December 15, 1862 (i.e. May 19 or 20, 1864. Working within the Confederate lines under a flag of truce. Our army had retreated, leaving our dead on the field

Interior of the Union Fort Sedgwick, called by the rebel soldiers "Fort Hell," showing Union soldiers on the breastworks

Interior of the Union Fort Sedgwick, called by the rebel soldiers "Fort Hell," showing Union soldiers on the breastworks

Ditch and "Cheavaux de frise" in front of the Union Fort Sedgwick, called by the Rebel soldiers "Fort Hell"

Ditch and "Cheavaux de Frise" in front of the Union Fort Sedgwick, called by the rebel soldiers "Fort Hell"

Breastworks and "Cheavaux de Frise" in the Rebel Fort Mahone, called by the soldiers "Fort Damnation"--Lieut. J.B. Krepps, 2d Penn. Veteran Artillery and comrades viewing the works

Union picket line in front of the rebel Fort Mahone, called by the soldiers "Fort Damnation", Richmond, Va.

Union picket line in front of the rebel Fort Mahone, called by the soldiers "Fort Damnation", Richmond, Va.

View from the parapet of Fort Sumpter (i.e. Sumter), with Charleston in the distance, taken April 14th, 1865, on the occasion of the raising of the old flag by Gen. Anderson