The 9th Massachusetts Volunteer Infantry Regiment lost 15 officers and 194 enlisted men killed or mortally wounded and 3 officers and 66 enlisted men to disease during the Civil War. It is honored by a monument at Gettysburg.
See a photograph of the 9th Massachusetts before celebrating Mass at Camp Cass near Washington, D.C.
|June 11||Organized at Boston under Colonel Thomas Cass. Recruited from men from Boston, Salem, Milford, Marlboro and Stoughton, with most of its volunteers of Irish birth or heritage.|
|June 27||Left State for Washington, D.C.;|
|June 30||Arrived in Washington and attached to the Department of Washington. Duty at Arlington Heights and Munson’s Hill.|
|July-August||Constructed Fort Cass. Attached to Sherman’s Brigade, Division of the Potomac.|
|September||Assigned to Morrell’s Brigade, Porter’s Division, Army of the Potomac|
|March||Assigned to 2nd Brigade, 1st Division, 3rd Army Corps, Army of the Potomac|
|March 16||Moved to the Peninsula, Virginia|
|April 4||Skirmish at Howard’s Bridge|
|April 5||Warwick Road|
|April 5-May 4||Siege of Yorktown|
|May||Assigned to 2nd Brigade, 1st Division, 5th Army Corps, Army of the Potomac|
|May 27||Battle of Hanover C. H.|
|May 27-29||Operations about Hanover C. H.|
|June 25-July 1||Seven days before Richmond|
|June 26||Battle of Mechanicsville|
The regiment lost 57 killed, 149 wounded and 25 missing defending a vital bridge and acting as rearguard
|June 30||White Oak Swamp and Turkey Bridge|
The regiment lost 166 casuaties, including Colonel Cass, who was mortally wounded, and Acting Lt. Colonel Hawley, who was wounded. Acting Major O’Leary took over the regiment, as Lt. Colonel Guiney and Major Hanley were on sick leave.
|July 2 – August 16||Duty at Harrison’s Landing. Lt. Colonel Guiney promoted to colonel.|
|August 10-28||Movement to Fortress Monroe, then to Centreville|
|August 28- September 2||Pope’s Campaign|
|August 29||Battle of Groveton|
The regiment was commanded by Colonel Patrick R. Guiney. It was in reserve and suffered no casualties,
|September 19||Blackford’s Ford|
|October 16-17||Reconnoissance toward Smithville, W. Va.|
|December 29-30||Expedition to Richard’s and Ellis’ Fords|
|January 20-24||“Mud March”|
|April 27-May 6||Chancellorsville Campaign|
|June 11-July 24||Gettysburg Campaign|
The regiment was commanded by Colonel Patrick R. Guiney. It brought 474 men to the field.
Form the monument:
Erected by the Ninth Regiment Infantry Massachusetts Volunteers, 2nd Brigade, 1st Division, 5th Army Corps, Army of the Potomac. During the Battle of Gettysburg the Ninth Regt. was detached from the 2nd Brigade and it held this position on Round Top. Casualties 26 men.
|November 26- December 2||
Mine Run Campaign
|December 3||At Bealeton and guard Orange & Alexandria Railroad|
|January 14,||Bealeton (1 Company)|
Colonel Guiney was badly wounded while commanding the brigade. The regiment, under the command of Lt. Colonel Hanley, lost 26 killed, 108 wounded and 3 missing.
|May 8||Battle of Laurel Hill|
The regment lost 25 killed, 71 wounded and 9 missing.
|May 12||Assault on the Salient at Spottsylvania C. H.|
North Anna River
|May 24||Jericho Mills|
|May 26-28||Line of the Pamunkey|
|June 10||Left front and ordered home for muster out.|
|June 21||Mustered out|