Army of the Potomac (Union) Filters Display # 5 10 15 20 25 30 50 100 All Filter List of articles in category Army of the Potomac (Union) Title Manassas I: Union Order of Battle McClellan's Letter to Lincoln July 7, 1862 McClellan's Assesment of Position During Peninsular Campaign Cavalry Division 12th Corps 9th Corps 6th Corps 5th Corps 2nd Corps 1st Corps