< to July • August 1861

Commanded by Brigadier General Samuel P. Heintzelman

Discontinued August 17, 1861

Unattached
4th United States Cavalry, Cos. A&E	Captain James B. McIntyre
First Brigade	Colonel William B. Franklin
11th Massachusetts Infantry Regiment	Colonel G. Clark	to Hooker’s Brig., Div. Potomac
1st Minnesota Infantry Regiment	Colonel W. A. Gorman	to Stone’s Brig., Div. Potomac
1st United States Artillery, Battery I	Lieutenant E. Kirby	to Stone’s Brig., Div. Potomac
Second Brigade	Colonel J. H. Hobart Ward
11th New York Infantry Regiment	Lt. Colonel John A. Cregier	to New York City
38th New York Infantry Regiment	Lt. Colonel Addison Farnsworth	to Howard’s Brig., Div. Potomac 8/4
1st Michigan Infantry Regiment	Major A. F. Bidwell	muster out
4th Michigan Infantry Regiment	Colonel D. A. Woodbury	to Sherman’s Brig., Div. Potomac
2nd United States Artillery, Battery D	Captain R. Arnold	to Kearney’s Brig., Div. Potomac
Third Brigade	Col. Oliver O. Howard
3rd Maine Infantry Regiment	Major H. G. Staples	to Howard’s Brig., Div. Potomac
4th Maine Infantry Regiment	Colonel H. G. Berry	to Howard’s Brig., Div. Potomac
5th Maine Infantry Regiment	Colonel M. H. Dunnell	to Heintzleman’s Brig., Div. Potomac
2nd Vermont Infantry Regiment	Colonel H. Whiting	to Smith’s Brig., Div. Potomac