William F. Fox, Lt. Col. U. S. V., Regimental Losses in the American Civil War, 1861-1865: A Treatise on the extent and nature of the mortuary losses in the Union regiments, with full and exhaustive statistics compiled from the official records on file in the state military bureaus and at Washington

Ninth New York Heavy Artillery.

Total of killed and wounded, 824; died in Confederate prisons (previously included), 41.

Present, also, at Fort Stevens; Snicker's Gap; Charlestown; Halltown; Smithfield; Hatcher's Run; Appomattox.

notes.--Organized, originally, as the One Hundred and Thirty-eighth Infantry. It was recruited in Cayuga and Wayne counties, and left Auburn on September 12, 1862. While stationed in the fortifications about Washington it was changed to heavy artillery November 9, 1862, and two additional companies, L and M, were added. Company M was organized originally at Lockport, N. Y, in October, 1862, as the Twenty-second Light Battery, and was transferred to the Ninth in February, 1863; Company L, was organized in 1863, and joined the regiment in December of that year. During its stay within the defences of Washington the Ninth built Fort Simmons, Mansfield, Bayard, Gaines, and Foote. On May 18, 1864, the regiment left Alexandria, Va., for the front, where it was assigned, soon after its arrival, to Colonel B. F. Smith's (3d) Brigade, Ricketts's (3d) Division, Sixth Corps. With the Sixth Corps it took part in the storming of the earthworks at Cold Harbor, its first experience under fire. Only two battalions were engaged there, the Third Battalion, under Major Snyder--Cos. G, I, L and F--having been ordered on detached service with the artillery brigade; the other two battalions were armed and drilled as infantry. Loss at Cold Harbor, 16 killed, 126 wounded, and 6 missing; total, 148. The Third Battalion did not rejoin the regiment until October 3, 1864, the other eight companies, in the meanwhile, having fought in the bloody battles of the Monocacy and the Opequon. At Cedar Creek the three battalions were again united, the gallant bearing of the regiment in that battle evoking special mention in the official report of the division-general. It lost in that action, 43 killed and 165 wounded total, 208. At the Opequon it lost 6 killed and 36 wounded.