|April 12||Stationed at the Artillery School of Practice, Fort Ridgley, Minnesota.|
|April 13-18||Moved as infantry to Washington D.C. by river steamer and rail.|
|April 18||Arrived at Washington, D.C. commanded by Captain J.C. Pemberton and was ordered to Seminary on E Street.|
|April 23||Ordered to the Arsenal in Washington.|
|April 29||Captain Pemberton resigned. He would be appointed a lieutenant colonel of artillery in the Confederate States army. First Lieutenant N. H. McLean of the 2nd United States Infantry was given command of the battery (still operating as infantry).|
|April 30||Moved to the Navy Yard.|
|June 6-7||Moved by rail to Carlisle Barracks, Pennsylvania.|
|April 30||Assigned 4 six-pounder smoothbores and 2 12-pounder howitzers.|
|June 20||Moved via the Cumberland Valley Railroad to Hagerstown under the command of Captain E. M. Hudson and was stationed at the Agricultural Fairgrounds.|
|June 30||Moved to Downsville, Maryland. Attached to the Thomas’ 1st Brigade, 1st Division, Army of Pennsylvania.|
Action at Falling Waters
One section under 1st Lieutenant D.D. Perkins was assigned to the 6th Brigade, 2nd Division and a second section under Captain McLean to the 1st Brigade, 1st Division. Both crossed the Potomac at Lemon’s Ferry near Williamsport and in the morning were engaged in a skirmish at Porterfield’s Farm near Falling Waters. Camped that night near Hainesville, Virginia.
|July 3||Moved to Martinsburg|
|July 15||Moved to Bunker Hill|
|July 17||Moved to Charlestown|
|July 21||Moved to Harpers Ferry|
|July 29||Assigned to the 3rd (Stone’s) Brigade, Army of Shenandoah|
Operations on the Upper Potomac
|October||Attached to Artillery, Banks’ Division, Army of the Potomac|
|December 17-20||Operations about Dams 4 and 5|
|March||Attached to Artillery, 1st Division, Banks’ 5th Corps|
Advance on Winchester, Virginia
|March 12||Occupation of Winchester|
|April 15-June 17||
Operations in the Shenandoah Valley
Attached to the Department of the Shenandoah, 1st Division
|May 24||Actions at Middletown and Newtown|
|May 24-26||Retreat to Williamsport|
|June||Attached to Artillery, 1st Division, 2nd Corps, Army of Virginia|
Battle of Cedar Mountain, Va.
|August 16-September 2||
Pope’s Campaign in Northern Virginia
The battery was commanded by Lieutenant Edward D. Muhlenberg. It brought 98 men to the field and was equipped with six Napoleons.
|September-December||At Maryland Heights|
|December 10-14||March to Fairfax Station|
|January 20-24||“Mud March”|
|February-April||At Stafford Court House|
|April 27-May 6||
|May||Attached to Artillery Brigade, 12th Army Corps, Army of the Potomac|
|June 11-July 24||
Commanded by Lieutenant Sylvanus T. Rugg, the battery brought six 12-Pounders to the field and lost 1 man wounded.
From the monument on Taneytown Road:
July 1. Approached gettysburg on the Baltimore Pike to Two Taverns and took position to counteract any movements of the Confederates from towards Hanover. At noon moved to the Hanover Road and marched to within one and one half miles of Gettysburg.
July 2. Took position so as to command a gap between the First and Second Corps.
July 3. At 1 a.m. posted opposite the centre of the line of the Twelfth Corps and at 4:30 opened fire on the Confederates who had taken possession of a portion of the line of the Twelfth Corps the preceding night. Continued firing until after 10 a.m. when the Confederates were driven from the line. In the afternoon the Battery was exposed to a severe shelling which passed over Cemetery Hill.
|September 24-October 3||Moved to Bridgeport, Ala.|
|October||Guard duty on Nashville & Chattanooga Railroad. Attached to Army of the Cumberland|
|March||Duty at Nashville, Tenn. attached to 1st Division, Artillery Reserve, Dept. of the Cumberland.|
|February||Moved to Washington and assigned to the Defenses of Washington until August.|