4th U.S. Artillery, Battery A

Battery "A" 4th Regiment of Artillery was a light artillery battery that served in the Union Army during the American Civil War.

Service

 * Consolidated with Battery C, 4th U.S. Light Artillery from October 1861 until October 18, 1862.
 * Sumner's Division, Army of the Potomac, to March 1862.
 * Artillery, 1st Division, II Corps, Army of the Potomac, to November 1862.
 * Reserve Artillery, II Corps, to May 1863.
 * Artillery Brigade, II Corps, to July 1863.
 * 1st Brigade, Horse Artillery, Army of the Potomac, to June 1864.
 * 1st Brigade, Hardin's Division, XXII Corps, to July 1864.
 * Camp Barry, Defenses of Washington, D.C., XXII Corps, to August 1865.

Detailed service

 * Duty in the defenses of Washington, D.C., until March 1862. Moved to the Virginia Peninsula.
 * Siege of Yorktown April 5–May 4.
 * Battle of Seven Pines, Fair Oaks, May 31–June 1.
 * Seven Days Battles before Richmond June 25–July 1.
 * Peach Orchard and Savage Station June 29.
 * White Oak Swamp and Glendale June 30.
 * Malvern Hill July 1.
 * At Harrison's Landing until August 16.
 * Moved to Alexandria and Centreville August 16–28.
 * Covered Pope's retreat August 28–September 2.
 * Maryland Campaign September 6–22.
 * Battle of Antietam September 16–17.
 * At Harpers Ferry September 22–October 30. Received 70 men who transferred from the 4th Ohio Infantry and refitted at Washington, D.C. before rejoining II Corps.
 * Movement to Falmouth, Va., October 30–November 19.
 * Battle of Fredericksburg December 12–15.
 * At Falmouth, Va., until April 1863.
 * Chancellorsville Campaign April 27–May 6.
 * Battle of Chancellorsville May 1–5.
 * Gettysburg Campaign June 11-July 16.
 * Battle of Gettysburg July 1–3.
 * Made a horse battery July 15, and attached to 1st Division, Cavalry Corps, Army of the Potomac.
 * Advanced to the Rapidan September 13–17.
 * Culpeper Court House September 13.
 * Reconnaissance across the Rapidan September 21–23.
 * Bristoe Campaign October 9–22.
 * White Sulphur Springs October 12.
 * Bristoe Station October 14.
 * St. Stephen's Church October 14.
 * Advance to line of the Rappahannock November 7–8.
 * Mine Run Campaign November 26–December 2.
 * Parker's Store November 29.
 * Rapidan Campaign May 4–June 4, 1864.
 * Battle of the Wilderness May 5–7.
 * Sheridan's Raid to the James River May 9–24.
 * North Anna River May 9.
 * Ground Squirrel Church and Yellow Tavern May 11.
 * Brook Church, Fortifications of Richmond, May 12.
 * On line of the Pamunkey May 26–28.
 * Totopotomoy May 28–31.
 * Cold Harbor May 31–June 1.
 * Dismounted and sent to Washington, D.C., June 4.
 * Duty in the defenses of Washington, D.C., until August 1865.

Commanders

 * Captain George Washington Hazzard - mortally wounded at the Battle of White Oak Swamp
 * Brevet Captain Rufus King, Jr. - commanded at the Battle of White Oak Swamp while still at the rank of 1st lieutenant after Cpt Hazzard was mortally wounded
 * Lieutenant Alonzo H. Cushing- commanded at the Battle of Gettysburg; killed in action
 * 1st Lieutenant Evan Thomas
 * 1st Lieutenant Horatio B. Reed
 * 2nd Lieutenant Samuel Canby - commanded at the Battle of Gettysburg after Lt Cushing was wounded and until he was wounded in action
 * 2nd Lieutenant Joseph S. Milne - commanded at the Battle of Gettysburg after Lt Canby was wounded and until he was wounded in action
 * 1st Sergeant Frederick Füger - commanded at the Battle of Gettysburg after all officers were killed or wounded in action

Notable members

 * Lieutenant Alonozo H. Cushing - Medal of Honor recipient for action at the Battle of Gettysburg
 * 1st Sergeant Frederick Füger - Medal of Honor recipient for action at the Battle of Gettysburg
 * Captain Rufus King, Jr. - Medal of Honor recipient for action at the Battle of White Oak Swamp