Union Units at Totopotomoy Creek and Cold Harbor, May 27 - June 12, 1864

CONNECTICUT

• Infantry: 8th, 11th, 14th, 21st Regiments.
• Cavalry: 1st Regiment.
• Artillery,Heavy: 2nd Regiment.

DELAWARE

• Infantry: 1st, 2nd, 3rd Regiments.

ILLINOIS

• Cavalry: 8th Regiment.

INDIANA

• Infantry: 7th, 13th, 14th, 19th, 20th Regiments.
• Cavalry: 3rd Regiment.

MAINE

• Infantry: 3rd, 4th, 5th, 6th, 7th, 8th, 9th, 16th, 17th, 19th, 20th, 31st, 32nd Regiments.
• Cavalry: 1st Regiment.
• Artillery, Field: 3rd, 4th, 5th, 6th, 7th Batteries.

MARYLAND

• Infantry: 1st, 2nd, 3rd, 4th, 6th, 7th, 8th Regiments; Purnell Legion.

MASSACHUSETTS

• Infantry: 1st, 7th, 9th, 10th, 11th, 12th, 13th, 15th, 16th, 18th, 19th, 20th, 21st, 22nd, 23rd, 25th, 27th, 28th, 29th, 32nd, 35th, 36th, 37th, 39th, 40th, 56th, 57th, 58th, 59th Regiments.
• Cavalry: 1st Regiment.
• Artillery, Heavy: 1st Regiment.
• Artillery, Field: 1st, 3rd, 5th, 9th, 10th, 11th, 14th Batteries.

MICHIGAN

• Infantry: 1st, 2nd, 3rd, 4th, 5th, 7th, 8th, 16th, 17th, 20th, 24th, 26th, 27th Regiments; 1st Sharpshooters.
• Cavalry: 1st, 5th, 6th, 7th Regiments.

MINNESOTA

• Infantry: 2nd Regiment.

NEW HAMPSHIRE

• Infantry : 2nd, 4th, 5th, 6th, 9th, 10th, 11th, 12th, 13th Regiments.

NEW JERSEY

• Infantry: 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, 9th, 10th, 11th, 12th, 14th, 15th Regiments.
• Cavalry: 1st, 3rd Regiments.

NEW YORK

• Infantry: 3rd, 7th, 10th, 12th, 34th, 39th, 40th, 42nd, 43rd, 44th, 46th, 47th, 48th, 49th, 51st, 57th, 59th, 61st, 62nd, 63rd, 64th, 65th, 66th, 67th, 69th, 70th, 71st, 72nd, 73rd, 74th, 76th, 77th, 80th, 82nd, 83rd, 86th, 88th, 89th, 92nd, 93rd, 94th, 95th, 96th, 97th, 98th, 104th, 106th, 108th, 109th, 111th, 112th, 115th, 117th, 118th, 120th, 121st, 122nd, 124th, 125th, 126th, 139th, 140th, 142nd, 146th, 147th, 148th, 151st, 152nd, 155th, 164th, 169th, 170th, 182nd Regiments; 1st Bn. Sharpshooters.
• Cavalry: 1st, 2nd, 2nd Mounted Rifles (dismounted), 4th, 5th, 6th, 9th, 10th, 19th, 24th (dismounted) Regiments; Oneida Cav.
• Artillery, Heavy: 2nd, 6th, 7th, 8th, 9th, 14th, 15th Regiments.
• Artillery, Field: 1st, 3rd, 4th, 11th, 12th, 15th, 19th, 27th, 34th Batteries; 15th Horse Artillery.

OHIO

• Infantry: 4th, 8th, 60th, 110th, 122nd, 126th Regiments.
• Cavalry: 2nd, 6th Regiments.
• Artillery, Field: 1st Regiment, Battery H.

PENNSYLVANIA

• Infantry: 11th, 23rd, 45th, 48th, 49th, 50th, 51st, 53rd, 55th, 56th, 57th, 58th, 61st, 62nd, 63rd, 67th, 68th, 69th, 71st, 72nd, 76th, 82nd, 83rd, 84th, 87th, 88th, 90th, 91st, 93rd, 95th, 96th, 97th, 99th, 99th, 100th, 102nd, 105th, 106th, 107th, 110th, 114th, 115th, 116th, 118th, 119th, 121st, 138th, 139th, 140th, 141st, 142nd, 143rd, 145th, 148th, 149th, 150th, 155th, 183rd, 184th 188th, 190th, 191st Regiments.
• Cavalry: 1st, 2nd, 3rd, 4th, 6th, 7th, 8th, 13th, 16th, 18th Regiments.
• Artillery, Heavy: 2nd Provisional Regiment.
• Artillery, Field: 1st Regiment.

RHODE ISLAND

• Infantry: 2nd, 7th Regiments.
• Artillery, Field: 1st Regiment.

VERMONT

• Infantry: 2nd, 3rd, 4th, 5th, 6th, 10th, 11th, 17th Regiments.
• Cavalry: 1st Regiment.
• Artillery, Heavy: 1st Regiment.
• Artillery, Field: 3rd Battery.

WEST VIRGINIA

• Infantry: 7th Regiment.

WISCONSIN

• Infantry: 2nd, 5th, 6th, 7th, 36th Regiments.

U.S. COLORED TROOPS

• Infantry: 19th, 23rd, 27th, 30th, 31st, 39th, 43rd Regiments.

U.S. REGULARS

• Infantry: 2nd, 4th, 8th, 10th, 11th, 12th, 14th, 17th Regiments.
• Cavalry: 1st, 2nd, 4th, 5th, 6th Regiments.
• Artillery, Field: 1st, 2nd, 4th, 8th Regiments; 1st, 2nd, 3rd, 4th Horse Artillery.
• Engineers: Engineer Battalion.

U.S. VOLUNTEERS

• Infantry: 1st, 2nd, U.S. Sharpshooters.