Casualties – 1st Corps, Army of the Potomac

Major General John F. Reynolds
  Headquarters escort      
    1st Maine Cavalry Company L      

 First Division

     
  First Brigade      
    22nd New York Infantry      
    24th New York Infantry      
    30th New York Infantry      
    84th New York Infantry      
  Second Brigade      
    7th Indiana Infantry 1 4   5
    76th New York Infantry   3   3
    95th New York Infantry   4 5 9
    147th New York Infantry   6   6
    56th Pennsylvania Infantry 2 8   10
  Third Brigade      
    22nd New Jersey Infantry   6   6
    29th New Jersey Infantry 2 7   9
    30th New Jersey Infantry   5   5
    31st New Jersey Infantry      
    137th Pennsylvania Infantry      
  Fourth Brigade      
    19th Indiana Infantry 1 4 1 6
    24th Michigan Infantry 4 20   24
    2nd Wisconsin Infantry   5 1 6
    6th Wisconsin Infantry 3 13   16
    7th Wisconsin Infantry 3 5 1 9
  Artillery   9 2 11
    1st New Hampshire Battery      
    1st New York, Battery L   8   8
    4th United States, Battery B   1 2 3

Second Division

     
  First Brigade      
    16th Maine Infantry      
    94th New York Infantry      
    104th New York Infantry      
    107th Pennsylvania Infantry      
  Second Brigade      
    12th Massachusetts Infantry      
    26th New York Infantry      
    90th Pennsylvania Infantry      
    136th Pennsylvania Infantry      
  Third Brigade      
    13th Massachusetts Infantry      
    83rd New York Infantry      
    97th New York Infantry      
    11th Pennsylvania Infantry      
    88th Pennsylvania Infantry      
  Artillery      
    2nd Maine Light Artillery      
    5th Maine Light Artillery      
    Pennsylvania Ind. Battery C      
    5th United States, Battery C      
 Third Division      
  First Brigade      
    121st Pennsylvania Infantry      
    135th Pennsylvania Infantry      
    142nd Pennsylvania Infantry      
    151st Pennsylvania Infantry      
  Second Brigade      
    143rd Pennsylvania Infantry      
    149th Pennsylvania Infantry      
    150th Pennsylvania Infantry      
  Artillery      
    1st Pennsylvania, Battery B      
    1st Pennsylvania, Battery F      
    1st Pennsylvania, Battery G      
   

k=killed, mw = mortally wounded, w=wounded, c = captured, r = relieved, ^ moved up to higher command