United States Army > Army of the Potomac < 3rd Corps


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Commanded by Brigadier General Fitz John Porter

Porter’s Division became the 1st Division of the 3rd Corps on March 3, 1862. Its 1st and 2nd Brigades were swapped in the process.

First Brigade Brigadier General J. H. Martindale
2nd Maine Infantry Regiment Colonel Charles W. Roberts
18th Massachusetts Infantry Regiment Colonel James Barnes
22nd Massachusetts Infantry Regiment Colonel Jesse A. Grove
13th New York Infantry Regiment Colonel John Pickell (res. 3/31)
25th New York Infantry Regiment Colonel Charles A. Johnson
Second Brigade Brigadier General G. W. Morrell
9th Massachusetts Infantry Regiment Colonel Thomas Cass
4th Michigan Infantry Regiment Colonel Dwight A. Woodbury
14th New York Infantry Regiment Colonel James McQuade
62nd Pennsylvania Infantry Regiment Colonel Samuel W. Black
Third Brigade Brigadier General D. Butterfield
16th Michigan Infantry Regiment Colonel Thomas Stockton
12th New York Infantry Regiment Colonel Henry A. Weeks from Wadsworth’s Brig. McDowell’s Div. 3/13
17th New York Infantry Regiment Colonel H. Seymour Lansing
25th New York Infantry Regiment Colonel James E. Kerrigan
44th New York Infantry Regiment Colonel Stephen W. Stryker
83rd Pennsylvania Infantry Regiment Colonel John W. McLane
Sharpshooters
1st United States Sharpshooters Colonel Hiram Berdan
Artillery
3rd Massachusetts Battery
5th Massachusetts Battery