This combination image shows, top, a sketch made available by the Library of Congress of soldiers in camp at night between 1860 and 1865, and bottom,
This combination image shows, top, a sketch made available by the Library of Congress of soldiers in camp at night between 1860 and 1865, and bottom, re-enactors portraying Union soldiers in the Murray's Brigade cooking their rations during ongoing activities commemorating the 150th anniversary of the Battle of Gettysburg, Thursday, June 27, 2013, at Bushey Farm in Gettysburg, Pa. The sketch is by combat artist Lt. Alfred R. Waud. ((AP Photo) )