The 28th Massachusetts Infantry regiment was the second primarily Irish American volunteer infantry regiment recruited in Massachusetts for service in the American Civil War. The regiment's motto was Faugh a Ballagh
John Milton Deane was an American Civil War Medal of Honor recipient and a major in the United States Army.
The 20th Massachusetts Volunteer Infantry, also known as the "Harvard Regiment", was a regiment of infantry in the American Civil War. The regiment was so nicknamed because the officers of the 20th were young Harvard graduates. In addition, some, but not all, of the private soldiers had attended Harvard. The 20th was organized at Camp Meigs in Readville, August 29 to September 4, 1861. After training they left Massachusetts for Washington, D. C., September 4. They would fight until the war's conclusion being mustered out on July 16 and discharged July 28, 1865. Fogel et al's Union Army Data urban sample suggests perhaps as many as two-thirds of the regiment's enlisted were immigrants with Irish immigrants making up half of the regiment's total.
The 61st Regiment Massachusetts Volunteer Infantry was an infantry regiment raised for one year's service in the Union Army during the American Civil War from 1864 to 1865.
The 41st Regiment Massachusetts Volunteer Infantry was a three-year infantry regiment that served in the Union Army during the American Civil War. It was recruited as part of Governors Banks' and Andrew's recruitment drives to supply the union with a military force to hold and expand Union control of the lower Mississippi. In the late winter/early spring of 1863, it was converted to mounted infantry and later to cavalry. On its conversion in June 1863 at Port Hudson, it was disestablished and re-established as the 3rd Massachusetts Volunteer Cavalry.
The 7th Regiment Massachusetts Volunteer Infantry was an infantry regiment in the Union army during the American Civil War. It was formed on June 15, 1861, in Taunton. Its original commander was Colonel Darius N. Couch who would eventually be promoted to command the II Corps of the Army of the Potomac and, after that, the Department of the Susquehanna.
23rd Regiment Massachusetts Volunteer Infantry was an infantry regiment in the Union army during the American Civil War. It was formed on 28 September 1861 in Lynnfield, Massachusetts, though some of the men were not mustered until the regiment's arrival to Annapolis, Maryland on 5 December, and comprised 6 companies from Essex County, Massachusetts and 1 each from Bristol, Plymouth, Middlesex and Worcester. An ex-militia officer, John Kurtz, was commissioned its colonel.
The 1st Company Massachusetts Sharpshooters was a sharpshooter unit in the Union Army during the American Civil War.
The 16th Massachusetts was an infantry regiment that served in the Union Army during the American Civil War formed of volunteers from the Commonwealth of Massachusetts.
The 17th Massachusetts was an infantry regiment that served in the Union Army during the American Civil War.
The 25th Regiment Massachusetts Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 39th Massachusetts Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
45th Regiment Massachusetts Volunteer Infantry was an infantry regiment in the Union army during the American Civil War. The regiment trained at Camp Meigs in Readville, Massachusetts before traveling to North Carolina, where they fought in the Battle of Kinston in December 1862, and in skirmishes in and around New Bern, North Carolina in the spring of 1863. They suffered heavy casualties in battle and due to fever. In June they returned to Boston, where they patrolled the streets to quell any draft riots, and were discharged on July 21. They were commanded by Colonel Charles R. Codman (1829-1918).
The 40th Regiment, Massachusetts Volunteer Infantry Regiment was a three-year infantry regiment of the Union Army that served in the Department of Virginia and North Carolina, the Army of the Potomac, and the Department of the South during the American Civil War.
The 3rd Massachusetts Volunteer Cavalry Regiment was a cavalry regiment that served in the Union Army during the American Civil War. It was organized by consolidating the 41st Massachusetts Mounted Infantry and the 2nd Battalion Massachusetts Cavalry on June 17, 1863. The regiment served with the XIX Corps, Army of the Gulf during the Red River Campaign in 1864. Its heaviest combat during this campaign took place during the Battle of Sabine Crossroads.
The 3rd Massachusetts Volunteer Militia Regiment was a peacetime regiment of infantry that was activated for federal service in the Union Army for two separate tours during the American Civil War. The regiment consisted of companies from Plymouth and Bristol Counties.
The 5th Regiment Massachusetts Volunteer Militia was a peacetime infantry regiment that was activated for federal service in the Union army for three separate tours during the American Civil War. In the years immediately preceding the war and during its first term of service, the regiment consisted primarily of companies from Essex County as well as Boston and Charlestown.
The 43rd Regiment Massachusetts Volunteer Infantry was a regiment of infantry that served in the Union Army during the American Civil War. The unit was first formed in September 1862 in response to President Abraham Lincoln's call for 300,000 men to serve for nine months. The nucleus of the regiment was the Second Battalion Massachusetts Volunteer Militia, a unit dating to 1798 known as the Boston Light Infantry and nicknamed the "Tigers." The 43rd Massachusetts therefore became known as the "Tiger Regiment."
The 44th Regiment Massachusetts Volunteer Infantry was a regiment of infantry that served in the Union Army during the American Civil War. Its nucleus was the 4th Battalion Massachusetts Volunteer Militia, known as the "New England Guards". An old state militia unit dating back to the Revolution, the 4th Battalion was called upon to serve garrison duty at Fort Independence shortly after the beginning of the Civil War. After President Abraham Lincoln's August 1862 call for 300,000 men to serve for nine months the 4th Battalion was given permission to recruit to a full regiment and to muster into federal service.
The 46th Regiment Massachusetts Volunteer Infantry was a regiment of infantry that served in the Union Army during the American Civil War. Its members volunteered in answer to President Abraham Lincoln's August 1862 call for 300,000 men to serve for nine months. The regiment gathered in Springfield, Massachusetts and consisted almost entirely of men from Hampden County. The primary recruiter was Rev. George Bowler who soon became Colonel in command of the regiment.
United States of America 
