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Federal Battery

Pennsylvania Light Artillery, Independent Battery E

"Knap's Battery"
Organized: Pittsburgh, PA; mustered in 9/1861
Disbanded/Mustered out: Pittsburgh, PA 6/14/1865


Commanding Officer on the Antietam Campaign:
  Capt. Joseph M. Knap


  6   10-pdr. Parrott


This Battery's Chain of Command:
  Army - Army of the Potomac
  Corps - Twelfth Army Corps
  Division - Twelfth Corps Artillery

Unit history

"In July, 1861, Joseph M. Knap, at that time serving as First Lieutenant of Company L, of the Twenty-eighth Regiment, Colonel John W. Geary, stationed at Point of Rocks, received authority to recruit a battery to serve with this regiment, which was near the proportions of a brigade, having eighteen full companies. He immediately proceeded to Pittsburg (PA) for recruits, and upon his arrival there, found a company which had been raised by Charles A. Atwell, and James D. M'Gill, intended for service in the Sixty-third Regiment, but which was offered to Captain Knap for his battery. It was promptly accepted, and at once proceeded to join the Twenty-eighth. Its ranks, however, were not full, and Colonel Geary applied for, and received permission of the War Department, to transfer surplus men of his command to the battery, in sufficient numbers to give it a maximum strength. It was then formally organized at Camp DeKorponay, Maryland, with the following officers:

- Joseph M. Knap, Captain
- Charles A. Atwell, First Lieutenant
- Clement Tingley, Jr., First Lieutenant
- Edward R. Geary, Second Lieutenant
- James D. M'Gill, Second Lieutenant."
(from Bates)


Initial Strength: 101; Killed in Action (KIA): 1; Wounded (WIA): 6; Captured (POW): 1;
Losses, % of Initial Strength: 7.9%

Maps Showing this Unit

Battlefield Tablets for this Unit

Tablet #120: Army of the Potomac - 17 Sep, 5 AM to 17 Sep, 12 PM
Tablet #27: Twelfth Army Corps - 17 Sep, 6 AM to 17 Sep, 12 PM

References & Notes

Source: Bates, Samuel P., History of the Pennsylvania Volunteers, 1861-65, Harrisburg, 1868-1871.; Extracted online at the Pennsylvania in the Civil War site.

We have 6 individuals in the AotW database who were on the Maryland Campaign with this unit:


Co. Rank Name Casualty? Details*
--PvtClark, Samuel C.WIA   09/17     We have some details for this person
--PvtKlinefelter, Joseph GazzanWIA/POW   09/17     We have some details for this person
--CaptKnap, Joseph M.        We have a picture for this person We have some details for this person
--PvtLewis, John WIA   09/17     We have some details for this person
--PvtMarshall, James KIA   09/17     We have some details for this person
--SgtShaw, Adam WIA   09/17     We have some details for this person


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