Battery A, 1st New Jersey Light Artillery was an artillery battery that served in the Union Army during the American Civil War.
The battery was organized at Hoboken, New Jersey and mustered in for a three-year enlistment on August 12, 1861 under the command of Captain William Hexamer.
The battery was attached to Kearney's Brigade, Division of the Potomac, to October 1861.
Franklin's Division, Army of the Potomac, to March 1862.
Artillery, 1st Division, I Corps, Army of the Potomac, to May 1862.
Artillery Brigade, VI Corps, to June 1863.
4th Volunteer Brigade, Artillery Reserve, Army of the Potomac, to October 1863.
3rd Volunteer Brigade, Artillery Reserve, to March 1864.
Artillery Brigade, VI Corps, to July 1864.
Artillery Reserve, Army of the Potomac, to December 1864.
Artillery Brigade, VI Corps, to June 1865.
Battery A, 1st New Jersey Light Artillery mustered out of service June 22, 1865.
Charles City Cross Roads and Glendale June 30.
Pursuit of Lee to Manassas Gap October 5–24.
Demonstration north of the James River July 27–29.