United States Army > Army of the Potomac > 1st Corps
September 1862 • to October >
Commanded by Brigadier General James B. Ricketts
Three brigades of the 2nd Division were transferred from the 2nd Division, 3rd Corps, Army of Virginia, on September 12, 1862.
| First Brigade | Brigadier General Abram Duryea | |
| 97th New York Infantry Regiment | Lt. Colonel John P. Spotford | |
| 104th New York Infantry Regiment | Major Lewis C. Skinner | |
| 105th New York Infantry Regiment | Lt. Colonel Howard Carroll (mw 9/17) Captain John C. Whiteside |
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| 107th Pennsylvania Infantry Regiment | Colonel Thomas F. McCoy | |
| Second Brigade | Colonel William H. Christian (res. 9/19) Colonel Peter Lyle |
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| 26th New York Infantry Regiment | Lt. Colonel Richard H. Richardson (Col. 9/19) | |
| 94th New York Infantry Regiment | Lieutenant Colonel Calvin Littlefield | |
| 88th Pennsylvania Infantry Regiment | Lt. Colonel George W. Gile (w 9/17) Captain Carmack (w 9/17) Captain Myers |
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| 90th Pennsylvania Infantry Regiment | Colonel Peter Lyle (^9/17) Lieutenant Colonel Leech |
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| Third Brigade | Brigadier General G. L. Hartsuff (w 9/17) Colonel Richard Coulter |
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| 16th Maine Infantry Regiment | Colonel Asa Wildes | from Washington 9/6 |
| 12th Massachusetts Infantry Regiment | Major Elisha Burbank (mw 9/17) Captain Benjamin Cook (to 9/9) Colonel James L. Bates |
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| 13th Massachusetts Infantry Regiment | Major Jacob Parker Gould | |
| 9th New York State Militia | Lt. Colonel William Atterbury | |
| 11th Pennsylvania Infantry Regiment | Colonel Richard Coulter (^ 9/17) Captain David M. Cook |
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| Artillery | ||
| 2nd Maine Battery | Captain James A. Hall | |
| 5th Maine Battery | Captain G. F. Leppien | |
| Battery F, 1st Pennsylvania Lt. Artillery | Captain Ezra P. Matthews | |
| Pennsylvania Independent Battery C | Captain James Thompson | |