Federal Regiment

9th Massachusetts Infantry

Commanding Officer on the Antietam Campaign:
Col. Patrick R. Guiney

This Regiment's Chain of Command:
  Army - Army of the Potomac
  Corps - Fifth Army Corps
  Division - 1st Division, 5th Corps
  Brigade - 2nd Brigade, 1st Division, 5th Corps

Battlefield Tablets for this Unit

Tablet #33: Fifth Army Corps - 15 Sep, 2 PM to 16 Sep, 12 PM
Tablet #18: Morell's Division, Fifth Army Corps - 16 Sep, 12 PM to 17 Sep, 8 AM
Tablet #26: Morell's Division, Fifth Army Corps - 17 Sep, 8 AM to 17 Sep, 2 PM

More on the Web

See a fine recruiting broadside of mid-1862 for the 9th, from the Massachusetts Historical Society (online with an article from the Massachusetts Historical Review).

We have one individual in the AotW database who was on the Maryland Campaign with this unit:

Co.	Rank	Name	Casualty?	Details*
F&S	Col	Guiney, Patrick Robert

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