A soldier-artist drew this sketch of Camp Humphreys, headquarters of the 3rd Division, 5th Corps of the Army of the Potomac in the winter of 1862-63. His detailed image, which he later had lithographed by a Pittsburgh printer and sold to his fellow soldiers, shows the military telegraph (foreground) built along the road to Falmouth.

The 155th Pennsylvania's regimental history said of this picture:
"This camp was remarkable, too, from the fact that it was occupied by all the regiments of Humphrey's Division collocated here together at one time. First, Colonel P.H. Allabach's headquarters, with brigade flag floating, is shown in the left ... of the picture. Next, the 155th Pennsylvania Volunteer regimental headquarters, in the foreground, with the regiment out on dress parade. Next the 123rd Regiment Pennsylvania Volunteers, Col. John B. Clark. Following this, the 133rd Regiment Pennsylvania Volunteers, Col. Allabach. And lastly, the 131st Regiment Pennsylvania Volunteers, Col. F.B. Speakman. The other four Pennsylvania regiments of Humphreys' Division, composing Gen. E.B. Tyler's brigade, are not entirely visible in this picture of Camp Humphreys, being partially concealed by the woods."