1861
September 18 Organized at Elmira, N.Y.
September 20 Left State for Washington, D.C. under Colonel Charles B. Stuart, Lieutenant Colonel William Pettes and Major Frederick Embrick
September 22-30 Attached to 3rd Brigade, Porter’s Division, Army of the Potomac and duty at Hall’s Hill, Va., and near Navy Yard, Washington
October 22 Detailed as sappers, miners and pontooners, and designated 50th New York Engineers at Washington, D.C.