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Commanding Officer on the Antietam Campaign:
Capt. William H. H. Mapes
This Regiment's Chain of Command:
Army - Army of the Potomac
Corps - Twelfth Army Corps
Division - 1st Division, 12th Corps
Brigade - 1st Brigade, 1st Division, 12th Corps
Unit history
The Regiment was organized at Albany in early May 1861 in response to the first call for troops at the outbreak of War. They were mustered into Federal service for two years on 22 May.1
On the Antietam Campaign
By 4 September 1862, at the start of the Maryland Campaign, the Regiment had been decimated by casualties and disease. As a result, they were consolidated into 4 companies, commanded by Captains Fitzgerald, Fenn, Waller and Judd. Captain Mapes, recently returned from recruiting duty in New York was senior officer present and commanded the unit.
The Regiment saw no action at South Mountain on September 14th, and was only briefly under fire on the Federal right at Antietam on the 17th.1
Statistics
Initial Strength: 65; Killed in Action (KIA): 2; Wounded (WIA): 9; Captured (POW): 1;
Losses, % of Initial Strength: 18.5%
Map Showing this Unit
Detail Map #2: Hood's Division Retakes Miller's Cornfield (7-8 am)
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
Tablet #28: Williams' Division, Twelfth Army Corps - 17 Sep, 6 AM to 17 Sep, 5 PM
Tablet #29: Crawford's Brigade, Williams' Division - 17 Sep, 9 AM to 17 Sep, 5 PM
We have 5 individuals in the AotW database who were on the Maryland Campaign with this unit:
| Co. | Rank | Name | Casualty? | Details* |
|---|---|---|---|---|
| C | Capt | Mapes, William Henry Harrison |  | |
| D | Corp | Bennett, David Henry | KIA 09/17 | |
| D | Pvt | Chapman, Thomas J. | MWIA 09/17 | |
| D | Pvt | Purcell, Thomas | WIA 09/17 | |
| E | Pvt | Knapp, Leonard A. | MWIA 09/17 | |
* If there's a symbol in the Details column ...
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1 Boyce, Charles William, A Brief History of the Twenty-eighth Regiment New York State Volunteers, First Brigade, First Division, Twelfth Corps, Army of the Potomac, Buffalo: C.W. Boyce, 1896 [AotW citation 685]