United States Regiments & Batteries

Massachusetts provided to the Union Army 5 regiments and 3 battalions of cavalry; 4 regiments, 1 battalion and 30 independent companies of heavy artillery; 18 batteries of light artillery; 2 companies of sharpshooters; and 71 regiments and 3 battalions of infantry. Most served in the eastern theater, with exceptions listed below.*


The 27th, 31st, 41st, 42nd, 43rd, 44th, 45th, 47th, 48th , 49th, 50th, 52nd, 53rd, 54th, and 55th infantry regiments did not serve in the Eastern Theater.  The 62nd Infantry never completed its organizaton, which was underway at war’s end.

1st Infantry Battalion • 1st Massachusetts • 2nd Massachusetts • 3rd Massachusetts

3rd Massachusetts Rifle Battalion • 4th Massachusetts • 5th Massachusetts • 6th Massachusetts

7th Massachusetts • 8th Massachusetts • 9th Massachusetts • 10th Massachusetts

11th Massachusetts • 12th Massachusetts • 13th Massachusetts • 14th Massachusetts

15th Massachusetts • 16th Massachusetts • 17th Massachusetts • 18th Massachusetts

19th Massachusetts • 20th Massachusetts • 21st Massachusetts • 22nd Massachusetts

23rd Massachusetts • 24th Massachusetts • 25th Massachusetts • 26th Massachusetts

28th Massachusetts • 29th Massachusetts • 30th Massachusetts • 32nd Massachusetts.

33rd Massachusetts • 34th Massachusetts • 35th Massachusetts • 36th Massachusetts

37th Massachusetts • 38th Massachusetts • 39th Massachusetts • 40th Massachusetts

46th Massachusetts • 51st Massachusetts • 56th Massachusetts • 57th Massachusetts

58th Massachusetts • 59th Massachusetts • 60th Massachusetts • 61st Massachusetts

Sharpshooter Companies

1st Massachusetts Sharpshooters Company  • 2nd Massachusetts Sharpshooters Company 


The Independent Cavalry Battalion and the 2nd Cavalry Battalion did not serve in the Eastern Theater.

1st Massachusetts Cavalry  • 2nd Massachusetts Cavalry  • 3rd Massachusetts Cavalry 

4th Massachusetts Cavalry • 5th Massachusetts Cavalry (Colored) 

Devin’s Massachusetts Mounted Rifle Battalion

Heavy Artillery

The 1st Battalion Heavy Artillery, 2nd Regiment Heavy Artillery and several independent companies of heavy artillery did not serve in the Eastern Theater.

Unattached Heavy Artillery Companies • 1st Massachusetts Heavy Artillery

3rd Massachusetts Heavy Artillery • 4th Massachusetts Heavy Artillery

Light Artillery

The  4th, 6th, 12th, 13th and 15th Light Artillery Batteries did not serve in the Eastern Theater.

1st Massachusetts Battery • 2nd Massachusetts Battery • 3rd Massachusetts Battery

5th Massachusetts Battery  • 7th Massachusetts Battery  • 8th Massachusetts Battery 

9th Massachusetts Battery  • 10th Massachusetts Battery  • 11th Massachusetts Battery

14th Massachusetts Battery • 16th Massachusetts Battery  • Cook’s Massachusetts Battery