HISTORICAL NOTES:
Beginning in April 1864, companies of infantry were needed for guard and garrison duty along the coast of Massachusetts; to be stationed at the numerous military posts located there for a ninety-day period. With the Independent Division of Militia, a home guard militia organization, already established in the state in 1863, eight companies were recruited from their ranks, and mustered into United States service. Five other companies were detached from existing regiments of the Massachusetts Militia to finish the required roster.
Their term of enlistment soon ending, a call for 100-day companies was then ordered in July and August 1864 to fill the soon to be vacant positions at the coastal forts. Again, the state militia regiments were used to fill most of the quota, with a need to only recruit two new companies.
In late October 1864, the office of the Adjutant General released orders to the commanding officers of the "Companies of One Hundred Days Troops belonging to Massachusetts, now doing garrison duty at the forts on the coast", to reenlist their commands for one year, and to fill with new recruits any positions held by those men not choosing to rejoin. Six of the 100-day companies were re-mustered, including the 2nd Unattached Company now beginning its third term. None of the one-year companies finished a full term, as the war had come to an end, and all were mustered out by July 1865.
The 5th Unattached Company, Massachusetts Infantry (Militia) was organized at Readville, Mass, and mustered in for 90 days' service May 4, 1864. They were assigned to guard duty at Beech St Barracks, Boston. They were mustered out August 2, 1864.
ROSTERS:
The composite roster of this regiment contains the names of 106 men.
HISTORICAL NOTES: