50th N.Y.V. engineers constructing road at Jericho Mills, on south bank of North Anna, Va. General headquarters' train crossing canvas pontoon bridge in the distance, 24th May, 1864
Building railroad bridge, across Cedar Run near Catlett's Station. Destroyed by the Confederates when they fell back before the Army of the Potomac, under Gen'l Meade, Oct. 13, 1863