Battery "C" 4th Regiment of Artillery was a light artillery battery that served in the Union Army during the American Civil War.
Subsequently it was attached to Sumner's Division, Army of the Potomac, to March 1862.
1st Regular Brigade, Artillery Reserve, Army of the Potomac, to November 1863.
Artillery Brigade, VI Corps, to March 1864.
Artillery Reserve, Army of the Potomac, to April 1864.
1st Brigade, Horse Artillery, Army of the Potomac, to August 1864.
Horse Artillery, Army of the Shenandoah, Middle Military Division, to December 1864.
Horse Artillery Reserve, Army of the Shenandoah, to May 1865.
Operations on Orange & Alexandria Railroad March 28–31.
Ground Squirrel Church and Yellow Tavern May 11.
Wilson's Raid on Southside & Danville Railroad June 22-July 1.
Sappony Church, Stony Creek, June 28–29.
Sheridan's Shenandoah Valley Campaign August 7-November 28.
Expedition from Winchester into Faquier and Loudoun Counties November 28-December 3.
Occupation of Staunton and action at Waynesboro March 2.
Tabernacle Church or Beaver Pond Creek April 4.