eHistory.com on the 1913 gathering of both Northern and Southern Veterans on the 50th Anniversary of the Battle of Gettysburg:
On the fourth of July at high noon, a great silence fell over the battlefield, as the church bells began to toll. Buglers of the blue and gray prepared to play the mournful tune of Taps one last time. The guns of Gettysburg shook the ground, signaling the end of the weeklong event. And though many eloquent speeches were given, none expressed what these Veterans took away from this experience better than a scene witnessed at the train station:
"Nearly all of the men had said their good-byes and headed for home. On the station platform a former Union soldier from Oregon and a Louisiana Confederate were taking leave of each other. They shook hands and embraced, but neither seemed able to find the words to express his feelings. Then an idea seemed to strike both men at once. In a simple act, which seemed to say everything they felt the pair took off their uniforms and exchanged them. The Yankee went home in Rebel gray, the Confederate in Union blue."