34th Massachusetts Infantry Regiment

The regiment was attached to Military District of Washington and Alexandria to February 1863.

Tyler's Brigade, District of Alexandria, XXII Corps, Department of Washington, to April 1863.

2nd Brigade, DeRussy's Division, Defenses South of the Potomac, XXII Corps, to June 1863.

Martindale's Command, Garrison of Washington, XXII Corps, to July 1863.

1st Brigade, Maryland Heights Division, Department of West Virginia, to December 1863.

2nd Brigade, 1st Infantry Division, Department of West Virginia, to June 1864.

1st Brigade, 1st Infantry Division, Department of West Virginia, to December 1864.

1st Brigade, Independent Division, XXIV Corps, Army of the James, to June 1865.

The 34th Massachusetts Infantry mustered out of service on June 16, 1865 and was discharged July 2, 1865.

At Fort Lyon, defenses of Washington, D.C., September 15, 1862 to June 2, 1863.

Operations in Hampshire and Hardy Counties, W. Va., January 27 – February 7.

In the trenches north of the James River before Richmond until March 1865.