32nd Independent Battery Light Artillery

Nickname: Buffalo Light Artillery; Eaton's Battery

Battery D, 1st battalion artillery designated 32nd battery: March 16, 1863. 
Mustered out: July 12, 1865.

The following is taken from New York in the War of the Rebellion, 32nd ed. Frederick Phisterer. Albany: J. B. Lyon Company, 1912.

Battery D, 1st Battalion Artillery, was designated as above March 16, 1863. It was recruited and organized at New York city and there mustered in the service of the United States for three years September 20, 1861. Commanded by Capt. Edward Grimm, the battery left the State October 20, 1861, and served at and near Washington, D. C, from that time; in the Artillery Reserve, Army of the Potomac, from March, 1862; in the 3d Brigade, Artillery Reserve, 5th Corps, Army of the Potomac, from May, 1862; in the Artillery Reserve, 5th Corps, from September, 1862; in the Artillery Reserve, Army of the Potomac, from December 2, 1862; in 2d Volunteer Brigade, Artillery Reserve, Army of the Potomac, from May, 1863; in 22d Corps from June, 1863; and at and near Harper's Ferry, W. Va., and in the Army of West Virginia, 8th Corps, from July, 1863. At the expiration of its term of service those entitled thereto were discharged and the battery continued in service. August 15, 1864, and February 4, 1865, respectively, the officers and enlisted men of the 29th and 15th N. Y. Volunteer Batteries, in service at the time, were transferred to this battery, which, commanded by Capt. Patrick Hart, has honorably discharged and mustered out July 12, 1865, at New York city, having during its service lost by death, of wounds received in action, 2 enlisted men; of disease and other causes, 4 enlisted men; total, 6.

The following is taken from The Union army: a history of military affairs in the loyal states, 1861-65 -- records of the regiments in the Union army -- cyclopedia of battles -- memoirs of commanders and soldiers, Volume II: New York, Maryland, West Virginia and Ohio. Madison, WI: Federal Pub. Co., 1908.

Thirty-second Independent Battery.—Capts., Edward Grimm, Robert Langner. Charles Kusserow, Patrick Hart. Attached to the artillery reserve of the Army of the Potomac, it took part in the siege of Yorktown and then embarked on the Peninsular campaign, with the artillery reserve of the 5th corps, fighting at Gaines mill, Garnett's farm and Malvern hill. With the reserve it was present at Antietam, Boteler's ford, Shepherdstown, Fredericksburg (where it lost 2 men mortally and one slightly wounded), Pollock's Mill creek, Marye's heights and Salem Church. Attached to the 8th corps. Army of West Virginia in the summer of 1864, it was engaged at Martinsburg and Harper's Ferry. On the expiration of its term of enlistment the original members were mustered out, and its ranks were filled by the transfer of the veterans and recruits from the 29th battery on Aug. 15, 1864, and the 15th battery on Feb. 4, 1865. The consolidated organization was mustered out on July 14, 1865, at New York city, commanded by Capt. Hart. During its term of service the battery lost 2 men mortally wounded, and 4 men died of disease and other causes.

NYSMM Online Resources

Battles and Casualties from Phisterer (pdf)
Battles and Casualties from Phisterer (spreadsheet)

Muster Roll

Unit Roster