February 1863 • to March >

Commanded by Major General Samuel P. Heintzelman
Defences North of the Potomac Lieutenant Colonel J. A. Haskins  
First Brigade Colonel A. A. Gibson  
Second Brigade Colonel Lewis O. Morris  
Third Brigade Colonel W. R. Pease  
Abercrombie’s Division Brigadier General J. J. Abercrombie  
Second Brigade Brigadier General Robert Cowden  
Third Brigade Colonel William Gurney  
Casey’s Division Major General Silas Casey  
First Brigade Colonel Francis Fessenden  

Second Brigade

Brigadier General Edwin H. Stoughton  
Third Brigade Brigadier General Alexander Hays  
Pennsylvania Reserves Division Colonel H. G. Sickel  
First Brigade Colonel William McCandless from
Army of
the Potomac,
1st Corps, 3rd Div.
Second Brigade Colonel H. C. Bollinger
Third Brigade Colonel J. W. Fisher
Jewett’s Independent Brigade Colonel A. B. Jewett  
23rd Maine Infantry Regiment    
39th Massachusetts Infantry Regiment    
14th New Hampshire Infantry Regiment    
10th Vermont Infantry Regiment    
11th New York Cavalry, Cos. E, F & I    
10th Massachusetts Independent Battery    
Independent Cavalry Brigade Colonel R. Butler Price  
1st Michigan Cavalry Regiment    
5th New York Cavalry Regiment    
1st Ohio Cavalry Regiment, Cos. A & C    
2nd Pennsylvania Cavalry Regiment    
18th Pennsylvania Cavalry Regiment    
1st Vermont Cavalry Regiment    
1st West Virginia Cavalry Regiment    
District of Washington Brigadier General J. H. Martindale  
2nd District of Columbia Infantry Regiment Colonel Charles M. Alexander  
10th New Jersey Infantry Regiment Colonel William R. Murphy  
118th New York Infantry Regiment    
152nd New York Infantry Regiment    
169th New York Infantry Regiment    
27th Pennsylvania Infantry, Co. F    
150th Pennsylvania Infantry, Co. K    
157th Pennsylvania Infantry (4 cos.)    
District of Alexandria Brigadier General John P. Slough  
1st District of Columbia Infantry Regtiment    
26th Michigan Infantry Regiment    
153rd New York Infantry Regiment    
11th Rhode Island Infantry Regiment    
Artillery, Distict of Alexandria Brigadier General R. O. Tyler  
1st Connecticut Heavy Artillery    
19th Connecticut Infantry (Hv. Artillery)    
Artillery Brigade South of the Potomac Colonel M. Cogswell  
1st Massachusetts Heavy Artillery    
34th Massachusetts Infantry Regiment    
2nd New York Heavy Artillery    
3rd New York Heavy Artillery Battalion    
1st Wisconsin Heavy Artillery    
Light Artillery Camp Camp Berry Brigadier General William F. Berry  
1st Delaware Battery    
1st Michigan Artillery, Battery I    
1st Michigan Artillery, Battery K    
1st New York Artillery, Battery A    
12th New York Independent Battery    
16th New York Independent Battery    
19th New York Independent Battery    
27th New York Independent Battery    
1st West Virginia Artillery, Battery A    
Pennsylvania Independent Battery H