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Federal Corps

Twelfth Army Corps


Commanding Officers on the Antietam Campaign:
  MGen Joseph K. F. Mansfield
  BGen Alpheus S. Williams


Members of Interest:
  Surg. Thomas Antisell, Medical Director
  Capt. Clarence H. Dyer, AAG
  Capt. James W. Forsyth, ADC

This Army Corps' Chain of Command:
  Army - Army of the Potomac

Units which make up this Army Corps:
  1st Division, 12th Corps
  2nd Division, 12th Corps
  Twelfth Corps Artillery
  1st Michigan Cavalry, Company L

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