June 1861 • to July >

Commanded by Brigadier General Daniel Tyler* 

First Brigade Colonel Erasmus Keyes
2nd Maine Infantry Regiment Colonel Charles D. Jameson from Maine via New York
1st Connecticut Infantry Regiment Lieutenant Colonel Speidel from Dept. Washington 6/24
2nd Connecticut Infantry Regiment Colonel A. H. Terry from Dept. Washington 6/24
3rd Connecticut Infantry Regiment Colonel J. Chatfield from Dept. Washington 6/24
Varian’s New York Battery Captain J. Varian from Annapolis, Md.
Second Brigade Brig. Gen. Robert C. Schenck**
1st Ohio Infantry Regiment Colonel A. McCook from Dept. Washington
2nd Ohio Infantry Regiment Colonel L. Wilson from Dept. Washington
2nd New York State Militia Colonel G. W. B. Tompkins from New York 5/18; mustered in 5/28
New York Artillery, Battery B Captain Thaddeus P. Mott from 2nd NYSM (above)
2nd United States Artillery, Battery E Captain Carlisle from Regular Army
Third Brigade Colonel W. T. Sherman
13th New York Infantry Regiment Colonel Isaac F. Quinby arrived 6/1 from New York
69th New York State Militia Colonel Michael Corcoran from Dept. Washington
79th New York Infantry Regiment Colonel J. Cameron arrived 6/3 from New York
2nd Wisconsin Infantry Regiment Colonel P. S. Coon arrived 6/25 from Wisconsin
3rd United States Artillery, Battery E Captain Ayers from Regular Army
Fourth Brigade Colonel Israel Richardson
1st Massachusetts Infantry Regiment Colonel R. Cowdin arrived 6/17 from Massachusetts
12th New York Infantry Regiment Colonel E. L. Walrath arrived 6/1 from New York
2nd Michigan Infantry Regiment Major A. W. Williams arrived 6/10 from Michigan
3rd Michigan Infantry Regiment Colonel D. McConnel arrived 6/16 from Michigan
1st United States Artillery, Battery G Lieutenant J. Edwards from Regular Army
2nd United States Artillery, Battery M Captain H. J. Hunt from Regular Army

*Tyler’s commission was in the Connecticut militia
**Schenk’s commission was in the United States Volunteers