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.*

Massachusetts Infantry Regiments

1st • 2nd • 3rd • 4th • 5th • 6th7th • 8th • 9th • 10th

11th • 12th • 13th • 14th15th • 16th • 17th • 18th • 19th

20th • 21st • 22nd • 23rd • 24th • 25th • 26th28th • 29th  

30th • 32nd • 33rd • 34th • 35th • 36th37th • 38th • 39th

40th46th • 51st • 56th • 57th 58th • 59th • 60th • 61st

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.

Massachusetts Infantry Battalions

1st Infantry Battalion3rd Rifle Battalion

Massachusetts Sharpshooter Companies

1st Sharpshooters Company  • 2nd Sharpshooters Company 

Massachusetts Cavalry

1st Cavalry  • 2nd Cavalry  • 3rd Cavalry4th Cavalry • 5th Cavalry (Colored) 

Devin’s Mounted Rifle Battalion

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

Massachusetts Heavy Artillery

Unattached Heavy Artillery Companies 

1st Heavy Artillery • 3rd Heavy Artillery • 4th 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.

Massachusetts Light Artillery

1st Battery • 2nd Battery • 3rd Battery5th Battery • 7th Battery • 8th Battery 

9th Battery • 10th Battery • 11th Battery 14th Battery • 16th Battery • Cook’s Battery 

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