Union Army of the Potomac 25 June - 2 July 1862

II Army Corps: Major General E.V.Sumner 1st Division: Major General I.B.Richardson 1st Brigade: Brigadier General J.C.Caldwell 5th New Hampshire Regiment 7th Regiment 61st New York Regiment 64th New York Regiment 81st Regiment 2nd Brigade: Brigadier General T.F.Meagher 29th Massachusetts Regiment 63rd New York Regiment 69th New York Regiment 88th New York Regiment 3rd Brigade: Brigadier General W.H.French 52nd New York Regiment 57th New York Regiment 64th New York Regiment 66th New York Regiment 53rd Pennsylvania Regiment 2nd Delaware Regiment Artillery: 1st New York Light, Battery B 4th U.S., Battery A 4th U.S., Battery C 2nd Division: Major General J.Sedgwick 1st Brigade: Colonel A.Sully 15th Massachusetts Regiment 1st Minnesota Regiment 34th New York Regiment 82nd New York Regiment 1st Co/Massachusetts Sharpshooters Russell's Sharpshooter Company 2nd Brigade: Brigadier General W.W.Burns 69th Pennsylvania Regiment 71st Pennsylvania Regiment 72nd Pennsylvania Regiment 106th Pennsylvania Regiment 3rd Brigade: Brigadier General N.J.T.Dana 19th Massachusetts Regiment 20th Massachusetts Regiment 7th Regiment 42nd New York Regiment Artillery: Colonel C.H.Tompkins 1st Rhode Island Light, Battery A 1st U.S., Battery I Corps Reserve Artillery: 1st New York Light, Battery G 1st Rhode Island Light, Battery B 1st Rhode Island Light, Battery G Cavalry: D/, F/, H/, K/8th New York Cavalry Regiment

III Army Corps: Brigadier General S.P.Heintzelman 2nd Division: Brigadier General J. Hooker 1st Brigade: Brigadier General C.Grover 1st Massachusetts Regiment 11th Massachusetts Regiment 16th Massachusetts Regiment 26th Pennsylvania Regiment 2nd New Hampshire Regiment 2nd Brigade: Brigadier General D.E.Sickles 70th New York Regiment 71st New York Regiment 72nd New York Regiment 73rd New York Regiment 74th New York Regiment 3rd Brigade: Colonel J.B.Carr 5th Regiment 6th New Jersey Regiment 7th New Jersey Regiment 8th New Jersey Regiment 2nd New Jersey Battalion Artillery: 1st New York Light, Battery D New York Light Artillery, 4th Battery 1st U.S. Artillery, Battery H 3rd Division: Brigadier General J.C.Robinson 1st Brigade: Brigadier General J.C.Robinson 20th Indiana Regiment 87th New York Regiment 57th Pennsylvania Regiment 63rd Pennsylvania Regiment 105th Pennsylvania Regiment 2nd Brigade: Brigadier General D.B.Birney 3rd Maine Regiment 4th Maine Regiment 38th New York Regiment 40th New York Regiment 101st New York Regiment 3rd Brigade: Brigadier General H.G.Berry 1st New York Regiment 37th New York Regiment 2nd Michigan Regiment 3rd Michigan Regiment 5th Michigan Regiment Artillery: 1st Rhode Island Light Artillery, Battery E 2nd U.S. Artillery, Battery G Corps Reserve Artillery: New York Light Artillery, 6th Battery New Jersey Light Artillery, 2nd Battery 4th U.S. Artillery, Battery K

IV Army Corps: Brigadier General E.D.Keyes 1st Division: Brigadier General D.N.Couch 1st Brigade: Brigadier General A.P.Howe 55th New York Regiment 62nd New York Regiment 93rd Pennsylvania Regiment 98th Pennsylvania Regiment 102nd Pennsylvania Regiment 2nd Brigade: Brigadier General J.J.Abercromby 65th New York Regiment 67th New York Regiment 23nd Pennsylvania Regiment 31st Pennsylvania Regiment 61st Pennsylvania Regiment 3rd Brigade: Brigadier General I.N.Palmer 7th Massachusetts Regiment 10th Massachusetts Regiment 26th New York Regiment 2nd Rhode Island Regiment Artillery: 1st Pennsylvania Light Artillery, Battery C 1st Pennsylvania Light Artillery, Battery D 2nd Division: Brigadier General J.J.Peck 1st Brigade: Brigadier General H.M.Nagles 11th Maine Regiment 56th New York Regiment 100th New York Regiment 52nd Pennsylvania Regiment 104th Pennsylvania Regiment 2nd Brigade: H.W.Wessells 81st New York Regiment 85th New York Regiment 92nd New York Regiment 96th New York Regiment 98th New York Regiment 85th Pennsylvania Regiment 101st Pennsylvania Regiment 103rd Pennsylvania Regiment Artillery: 1st New York Light Artillery, Battery H New York Light Artillery, 7th Battery Corps Reserve Artillery: New York Light Artillery, 8th Battery 1st Pennsylvania Light Artillery, Battery E 1st Pennsylvania Light Artillery, Battery H 5th U.S. Artillery, Battery M Cavalry: 8th Pennsylvania Cavalry Regiment

V Army Corps: Major General Fitz-John Porter 1st Division: Major General G.W.Morrell 1st Brigade: Colonel J. Barnes 2nd Maine Regiment 18th Massachusetts Regiment 22nd Massachusetts Regiment 1st Michigan Regiment 13th New York Regiment 25th New York Regiment 2nd Company, Massachusetts Sharpshooters 2nd Brigade: Brigadier General C. Griffin 9th Massachusetts Regiment 4th Michigan Regiment 14th New York Regiment 62nd Pennsylvania Regiment 3rd Brigade: Brigadier General D.Butterfield 12th New York Regiment 17th New York Regiment 44th New York Regiment 16th Michigan Regiment Brady's Company, Michigan Sharpshooters 83rd Pennsylvania Regiment Artillery: Massachusetts Light, 3rd Battery (C) Massachusetts Light, 5th Battery (E) 1st Rhode Island Light, Battery C 5th U.S., Battery D Sharpshooters: 1st U.S. Sharpshooter Regiment 2nd Division: Major General George Sykes 1st Brigade: Lt. Colonel R.C.Buchanan 3rd U.S. Infantry Regiment 4th U.S. Infantry Regiment l/12th U.S. Infantry Regiment 2/12th U.S. Infantry Regiment l/14th U.S. Infantry Regiment 2/14th U.S. Infantry Regiment 2nd Brigade: Major C.S.Lovell 2nd U.S. Infantry Regiment 6th U.S. Infantry Regiment 10th U.S. Infantry Regiment 11th U.S. Infantry Regiment 17th U.S. Infantry Regiment 3rd Brigade: Colonel G.K.Warren 5th New York Regiment 10th New York Regiment Artillery: Colonel S.H.Weed 3rd U.S.Artillery, Battery L 3rd U.S.Artillery, Battery M 5th U.S.Artillery, Battery I 3rd Division: Brigadier General George A. McCall 1st Brigade: Brigadier General J.F.Reynolds 1st Pennsylvania Reserves 2nd Pennsylvania Reserves 5th Pennsylvania Reserves 8th Pennsylvania Reserves 13th Pennsylvania Reserves (1st Rifles, Cos A, B, D,E,F, & K) 2nd Brigade: Brigadier General G.G.Meade 3rd Pennsylvania Reserves 4th Pennsylvania Reserves 7th Pennsylvania Reserves 11th Pennsylvania Reserves 3rd Brigade: Brigadier General T.Seymour 6th Pennsylvania Reserves 9th Pennsylvania Reserves 10th Pennsylvania Reserves 12th Pennsylvania Reserves Artillery: 1st Pennsylvania Light, Battery A 1st Pennsylvania Light, Battery B 1st Pennsylvania Light, Battery G 5th U.S. Artillery, Battery C Cavalry: Colonel J.H.Childs 8th Pennsylvania Cavalry Regiment Cavalry: Colonel J.F.Farnsworth 9th Illinois Cavalry Regiment Artillery Reserve: Colonel H.J.Hunt 1st Brigade: Colonel H.J.Hunt (Horse Artillery) 2nd U.S. Artillery, Battery A 2nd U.S. Artillery, Battery B 2nd U.S. Artillery, Battery L 2nd U.S. Artillery, Battery M 3rd U.S. Artillery, Battery C 3rd U.S. Artillery, Battery G 2nd Brigade: Lt. Colonel G.W.Getty 1st U.S. Artillery, Battery E 1st U.S. Artillery, Battery G 1st U.S. Artillery, Battery K 4th U.S. Artillery, Battery G 5th U.S. Artillery, Battery A 6th U.S. Artillery, Battery K 3rd Brigade: Major A.Arndt 1st Bn/ New York Light Artillery, Battery A 1st Bn/ New York Light Artillery, Battery B 1st Bn/ New York Light Artillery, Battery C 1st Bn/ New York Light Artillery, Battery D 4th Brigade: Major E.R.Petherbridge Maryland Light Artillery, Battery A Maryland Light Artillery, Battery B 5th Brigade: Captain J.H.Carlisle 2nd U.S. Artillery, Battery E 3rd U.S. Artillery, Battery F 3rd U.S. Artillery, Battery K Unattached: 1st New York Light Artillery, Battery G New York Light Artillery, 5th Battery Siege Train:: Colonel R.O.Tyler 1st Connecticut Heavy Artillery

VI Army Corps: Major General W.B.Franklin 1st Division: Major General H.W.Slocum 1st Brigade: Brigadier General G.W.Taylor 1st New Jersey Regiment 4th New Jersey Regiment 2nd Brigade: Colonel J.J.Bartlett 5th Maine Regiment 16th New York Regiment 27th New York Regiment 96th Pennsylvania Regiment 3rd Brigade: Brigadier General J.Newton 18th New York Regiment 31st New York Regiment 32nd New York Regiment 95th Pennsylvania Regiment Artillery Massachusetts Light, Battery A New Jersey Light, Battery A 2nd U.S., Battery D 2nd Division: Major General W.F.Smith 1st Brigade: Brigadier General W.S.Hancock 6th Maine Regiment 43rd New York Regiment 49th Pennsylvania Regiment 5th Wisconsin Regiment 2nd Brigade: Brigadier General W.T.H.Brooks 2nd Vermont Regiment 3rd Vermont Regiment 4th Vermont Regiment 5th Vermont Regiment 6th Vermont Regiment 3rd Brigade: Brigadier General J.W.Davidson 7th Maine Regiment 20th New York Regiment 33rd New York Regiment 49th New York Regiment 77th New York Regiment Artillery: Captain R.A.Ayres 1st New York Light, Battery E New York Light, 1st Battery New York Light, 3rd Battery 5th U.S. Artillery, Battery F Cavalry: I/, K/5th Pennsylvania Cavalry Regiment 1st New York Cavalry Regiment Cavalry Reserve: Brigadier General P. St. G. Cooke A/, C/, F/, H/1st Cavalry Regiment 6th Pennsylvania Cavalry Regiment A/,D/,F/, H/,L/5th United States Cavalry Regiment 6th United States Cavalry Regiment Volunteer Engineer Brigade: Brigadier General D.P.Woodbury 15th New York Engineers 50th New York Engineers U.S.Engineer Battalion Troops at White House, VA. Brigadier General S.Casey 11th Pennsylvania Cavalry Regiment 1st New York Light Artillery, Battery F B/,C/,D/,E/,G/,I/93rd New York Infantry Regiment Troops at General Headquarters: McClellan Dragoons Sturge's Rifles Oneida (N.Y.) Cavalry A/, F/,H/,K/93rd New York Cavalry Regiment 2nd U.S.Cavalry Regiment A/, E/4th U.S.Cavalry Regiment F/, G/8th U.S.Cavalry Regiment

U.S. War Department, The War of the Rebellion, A Compilation of Official Records of the Union and Confederate Armies, Government Printing Office; Washington, D.C., 1882