Engineer Brigade

Army of the Potomac

Army of the Potomac

Engineer Brigade

Brig. Gen. Henry W. Benham

15th New York (3 Companies)

Major Walter L. Cassin

50th New York

Col. William H. Pettes

United States Battalion

Capt. George H. Mendell

Engaged in arduous duties from June 13 to July 18 1863 bridging ...