|July||Organized at Cincinnati, Ohio. Joined McClellan in West Virginia and attached to 3rd Brigade, Army of Occupation, West Virginia|
|July 6-17||West Virginia Campaign|
|September||Moved to Cheat Mountain and duty there attached to Cheat Mountain District, West Virginia|
|October 3-4||Action at Greenbrier River|
|January 7||Blue’s Gap|
|January||Moved to Washington, D. C., and duty there attached to Defenses of Washington, D. C.|
|March||Ordered to the Virginia Peninsula. Attached to Artillery Reserve, Army of the Potomac|
|April 5-May 4||Siege of Yorktown|
|May||Attached to 2nd Brigade, Horse Artillery, Artillery Reserve, 5th Army Corps|
|June 25-July 1||Seven days before Richmond|
|June 28-29||Bottom’s Bridge|
|July 1||Malvern Hill|
|July-August||At Harrison’s Landing|
|August 16-23||Movement to Fortress Monroe, then to Alexandria|
|September 6-22||Maryland Campaign. Attached to Artillery Reserve, 5th Army Corps, Army of the Potomac|
Commanded by Lieutenant Marcus P. Miller (USMA 1858).
From the marker:
On the morning of the 17th, the Battery was in the field just east of Porterstown. About 3 P.M., under orders of Brigadier General Geo. Sykes, it reported to Major General Burnside and was put in position on the high ground east of the Rohrbach Lane, from which it overlooked and commanded the approaches to the stone bridge over the Antietam. The Battery was not actively engaged.
|September 19||Shepherdstown Ford|
|October 30-November 19||Movement to Falmouth, Va.|
Battle of Fredericksburg
|April 27-May 6||Chancellorsville Campaign|
|May||Attached to 1st Regular Brigade, Artillery Reserve, Army of the Potomac, Lieutenant Christopher F. Merkle transferred from Battery E.|
|June||Attached to Artillery Brigade, 11th Army Corps, Army of the Potomac|
|June 11-July 24||Gettysburg Campaign|
Commanded by Lieutenant Bayard Wilkinson until he was mortally wounded on July 1st, when
From the monuments on Howard Avenue and in the National Cemetery at Gettysburg:
July 1 Arrived at Gettysburg about 11 a.m. Advanced and took position two sections on Barlow’s Knoll the left section detached near Almshouse. Engaged Confederate Infantry and artillery on right and left. Lieut. Wilkeson fell early mortally wounded and the command devolved on Lieut. Bancroft.
The sections were compelled to change positions several times. Retired about 4 p.m. one section relieving a section of Battery I 1st Ohio on Baltimore Street in covering the retreat. About 5 p.m. took position on Cemetery Hill.
July 2 Moved to rear of Cemetery facing Baltimore Pike. In action at the Cemetery from 4.30 p.m. until 7 p.m.
July 3 About 2 p.m. two sections were engaged in the Cemetery until the repulse o the Confederates.
Casualties: killed 1 officer and 1 man, wounded 11 men, missing, 4 men.
|September 24-October 3||Movement to Bridgeport, Ala. Attached to Army of the Cumberland|
|October 26-29||Reopening Tennessee River|
|November||Attached to Artillery, 2nd Division, 4th Army Corps, Army of the Cumberland|
Battle of Chattanooga, Tenn.
The battery was commanded by Lieutenant Merkle.
|November 23||Bushy Knob|
|November 23-24||Orchard Knob|
|November 25||Mission Ridge|
|February||Moved to Nashville, Tenn. and post duty|
|March||Attached to 1st Division, Artillery Reserve, Dept. of the Cumberland|
|October||Transferred to Battery “I” 4th Artillery|
|February||Remounted as a Battery at Washington, D.C. and service in the Washington Defenses until August|