Massachusetts Civil War Union Units 1st through 8th

The information in this list of Massachusetts Military Units comes from the Civil War Soldiers and Sailors web site (CWSS). This web site can also be searched by the name of a soldier.

1st Regiments

 * 1st Battalion, Massachusetts Heavy Artillery 1st Battalion, Massachusetts Heavy Artillery Organized April, 1865, from 1st, 2nd and 4th Unattached Companies Heavy Artillery. Mustered out May 25, 1864. Expiration of term.


 * 1st Unattached Company, Massachusetts Infantry (Militia) Mustered in for 90 days' service April 29, 1864. Duty at Fort Independence, Boston Harbor. Mustered out August 1, 1864.


 * 1st Company, Massachusetts Sharpshooters Organized at Lynnfield and mustered in September 2, 1861. Mustered out September 6, 1864.


 * 1st Regiment, Massachusetts Heavy Artillery Organized as 14th Massachusetts Infantry July 5, 1861. Mustered out June 29, 1865, and discharged at Readville, Mass., July 24, 1865.


 * 1st Regiment, Massachusetts Calvalry Organized at Camp Brigham, Reedville, and duty there until December 25, 1861. Mustered out June 29, 1865, and discharged at Readville, Massachusetts, July 24, 1865.


 * 1st Regiment, Massachusetts Infantry Organized at Boston and mustered in May 24th through May 27th, 1861. Ordered home for muster out May 20. Veterans and Recruits transferred to 11th Massachusetts Infantry May 20. Mustered out May 25, 1864. Expiration of term.


 * 1st Independent Battery, Massachusetts Light Artillery Organized at Camp Cameron August 27, 1861. Left State for Washington, D. C., October 3. Mustered out October 19, 1864, expiration of term.

2nd Regiments

 * 2nd Unattached Company, Massachusetts Infantry Organized November 3, 1862, for garrison duty in the forts of Boston Harbor, on duty at Fort Warren until April, 1863, when assigned to 1st Battalion Heavy Artillery as Company "B".


 * 2nd Unattached Company, Massachusetts Infantry (Militia)(90 days, 1864) Organized November 3, 1862, for garrison duty in the forts of Boston Harbor, duty at Fort Warren till April, 1863, when assigned to 1st Battalion Heavy Artillery as Company "B".


 * 2nd Unattached Company, Massachusetts Infantry (Militia)(100 days, 1864) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 2nd Unattached Company, Massachusetts Infantry (Militia) Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 2nd Company, Massachusetts Sharpshooters Organized at Lynnfield September 3, 1861. Mustered out October 17, 1864.


 * 2nd Regiment, Massachusetts Heavy Artillery Organized at Readville and mustered in: Mustered out September 23, 1865.


 * 2nd Regiment, Massachusetts Cavalry Organized at Readville and mustered in July 28, 1863 thru December 24, 1863. Mustered out July 20, 1865.


 * 2nd Regiment, Massachusetts Infantry Organized at Camp Andrew, West Roxbury, and mustered in May 25, 1861. Mustered out July 11, and discharged at Boston, Mass., July 26, 1865.


 * 2nd Independent Battery, Massachusetts Light Artillery Organized at Quincy and mustered in July 31, 1861. .Mustered out August 11, 1865

Regiments 3rd and 4th

 * 3rd Battalion, Massachusetts Riflemen (Militia) Organized at Worcester. Moved to New York April 20, 1861. Fort McHenry. Mustered out August 3, 1861.


 * 3rd Unattached Company, Massachusetts Infantry (Militia) Mustered in for 90 days' service May 3, 1864. Mustered out August 5, 1864.


 * 3rd Regiment, Massachusetts Heavy Artillery Organized for one year August, 1864, by consolidation of 3rd, 6th, 7th, 8th, 9th, 10th, 11th, 12th, 13th, 14th, 15th and 16th Unattached Companies Heavy Artillery. Mustered out September 18, 1865.


 * 3rd Regiment, Massachusetts Cavalry Organized as 41st Massachusetts Infantry. Designation changed to 3rd Cavalry June 17, 1863. Moved to Boston, Mass., September 29-October 5, and discharged October 8, 1865.


 * 3rd Regiment, Massachusetts Infantry Organized at Lakeville September, 1862. Mustered out June 26, 1863.


 * 3rd Regiment, Massachusetts Infantry (Militia) Left Boston on Steamer "S. R. Spaulding" for Fortress Monroe, Va., April 17, 1861. Ordered home July 16, and mustered out July 22, 1861. Expiration of term.


 * 3rd Independent Battery, Massachusetts Light Artillery Organized at Boston September 5, 1861. Mustered out September 16, 1864.


 * 4th Battalion, Massachusetts Infantry (Militia) Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 4th Unattached Company, Massachusetts Infantry (Militia) Organized at Readville, Mass., and mustered in for 90 days' service May 3, 1864. Mustered out August 6, 1864.


 * 4th Regiment, Massachusetts Heavy Artillery Organized November l2, 1864, by consolidation of the 17th, 18th, 19th, 20th, 21st, 22nd, 23rd, 24th, 25th, 26th, 27th and 28th Unattached Companies Heavy Artillery. Organized August, 1864, for one year's service.. Mustered out June 17, 1865.


 * 4th Regiment, Massachusetts Cavalry Organized at Readville December 26, 1863, to February 8, 1864. Regiment mustered out November 14, 1865. Discharged at Boston November 26, 1865.


 * 4th Regiment, Massachusetts Infantry Organized at Camp Joe Hooker, Lakeville, and mustered in September 23, 1862. Mustered out August 28, 1863.


 * 4th Regiment, Massachusetts Infantry (Militia) Organized at Boston May 27, 1862. Mustered out May 31, 1862.


 * 4th Regiment, Massachusetts Infantry (3 months, 1861) (Militia) Left Boston for Fortress Monroe, Va., on Steamer "State of Maine" April 17, 1861, arriving there April 20. Mustered out July 22, 1861.


 * 4th Independent Battery, Massachusetts Light Artillery Organized at Lowell November 17,1861. Mustered out November 10. 1865.

Regiments 5th and 6th

 * 5th Unattached Company, Massachusetts Infantry (Militia) Organized at Readville, Mass., and mustered in for 90 days' service May 4, 1864. Mustered out August 2, 1864.


 * 5th Regiment, Massachusetts Heavy Artillery Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 5th Regiment, Massachusetts Cavalry (Colored) Organized at Camp Meigs, Readville. 1st Battalion moved to Washington, D. C., May 5-8, 1864. Mustered out October 31, 1865.


 * 5th Regiment, Massachusetts Infantry (9 months, 1862-63) Tendered services to government for nine months August 14, 1862. Moved to Boston June 22-25, and there mustered out July 2, 1863.


 * 5th Regiment, Massachusetts Infantry (100 days, 1864) (Militia)Tendered services to the government for 100 days July, 1864. Ordered home November 6, 1864. Mustered out November 16, 1864.


 * 5th Regiment, Massachusetts Infantry (3 months, 1861) (Militia) Tendered services to the government April 15, 1861. Ordered to Boston July 29, and there mustered out August 1, 1861.


 * 5th Regiment, Massachusetts Infantry (Militia) "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 5th Independent Battery, Massachusetts Light Artillery Organized at Lynnfield and Reedville and mustered in December 10, 1861. Moved to Readville, Massachusetts, June 4-6, and there mustered out June 12, 1865.


 * 6th Unattached Company, Massachusetts Infantry (Militia) Organized at Readville and mustered in for 90 days' service May 4, 1864. Duty at Readville. Mustered out August 2, 1864.


 * 6th Regiment, Massachusetts Infantry (3 months, 1861) (Militia) Tendered services to government January 21, 1861. Relieved from duty July 29, and mustered out August 2, 1861.


 * 6th Regiment, Massachusetts Infantry (9 months, 1862-63) Organized at Camp Wilson, Lowell, and mustered in August 31,1862. Moved to Boston May 26-29, 1863, and there mustered out June 3, 1863.


 * 6th Regiment, Massachusetts Infantry (100 days, 1864) (Militia) Organized at Readville and mustered in July 14-19, 1864. Moved to Boston October 19-21, 1864. Mustered out October 27, 1864.


 * 6th Regiment, Massachusetts Infantry (Militia) Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 6th Independent Battery, Massachusetts Light Artillery Organized at Camp Chase, Lowell, and mustered in January 20, 1862. Moved to Readville, Massachusetts, July 21-August 1, and there mustered out August 7, 1865.

Regiments 7th and 8th

 * 7th Unattached Company, Massachusetts Infantry (Militia) Organized at Readville and mustered in for 90 days' service May 4, 1864. Mustered out August 5, 1864.


 * 7th Regiment, Massachusetts Infantry Organized at Taunton and mustered in June 15, 1861. Moved to Taunton, Massachusetts, June 16-20, and there mustered out July, 1864, expiration of term.


 * 7th Independent Battery, Massachusetts Light Artillery Organized at Lowell as Richardson's Light Guard; an Independent Infantry Company and mustered in May 21, 1861. Mustered out November 10, 1865.


 * 8th Regiment, Massachusetts Cavalry "Compendium of the War of the Rebellion" by Frederick H. Dyer contains no history for this unit.


 * 8th Independent Battery, Massachusetts Light Artillery Organized at North Cambridge for six months' service June 24, 1862. Mustered out November 2, 1862.


 * 8th Regiment, Massachusetts Infantry (9 months, 1862-63) Organized at Camp Lander, Wenham. Ordered home July 26 and mustered out August 7, 1863.


 * 8th Regiment, Massachusetts Infantry (100 days, 1864) Militia Organized at Readville July 13 to 26, 1864. Left State for Baltimore, Maryland, July 26. Moved to Massachusetts October 28, and mustered out November 10, 1864.


 * 8th Unattached Company, Massachusetts Infantry (Militia) Organized at Readville and mustered in for 90 days' service May 10, 1864. At Gallop's Island, Boston Harbor, until August. Mustered out August 11, 1864.


 * 8th Regiment, Massachusetts Infantry (3 months, 1861) Militia One of the first four Regiments to respond to the call after opening of hostilities. Gathered at Boston April 16, 1861. Mustered out August 1, 1861.