9th Regiment Infantry

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Sykes Avenue, north slope of Big Round Top


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


The Ninth Regiment Mass. Vols. was composed of Ten Companies of 101 men each from Boston, Salem, Milford, Marlboro and Stoughton and organized at Boston May 3, 1861. Mustered into the United States volunteer service June 11, 1861.
Mustered out at Boston. June 21, 1864.
Commanded respectively by Colonel Thomas Cass, and Colonel Patrick R. Cuiney.


Erected on Round Top Battlefield of Gettysburg June 1885


The Ninth Regiment Mass. Vols. served during three years. Campaigns in Virginia, Maryland and Pennsylvania and was in forty two engagements including the following:

Peninsula Campaign
Hanover Court House
Seven Days Battles
Mine Run
Wilderness Campaign
Total number casualties 863



Field & Staff---NCO Staff---Band---Unassigned

Organized at Boston June 11, 1861. Left State for Washington, D.C., June 27. Attached to Sherman's Brigade, Division of the Potomac, to October, 1861. Morrell's Brigade, Porter's Division, Army of the Potomac, to March, 1862. 2nd Brigade, 1st Division, 3rd Army Corps, Army of the Potomac, to May, 1862. 2nd Brigade, 1st Division, 5th Army Corps, Army of the Potomac, to June, 1864.

SERVICE.--Duty at Arlington Heights and Munson's Hill. Defences of Washington, D.C., until March 10, 1862. Moved to the Peninsula, Virginia, March 16. Skirmish at Howard's Bridge April 4. Warwick Road April 5. Siege of Yorktown April 5-May 4. Battle of Hanover C. H. May 27. Operations about Hanover C. H. May 27-29. Seven days before Richmond June 25-July 1. Battle of Mechanicsville June 26. Gaines' Mill June 27. White Oak Swamp and Turkey Bridge June 30. Malvern Hill July l. Duty at Harrison's Landing until August 16. Movement to Fortress Monroe, thence to Centreville August 10-28. Pope's Campaign August 28-September 2. Battles of Groveton August 29. Bull Run August 30. Battle of Antietam, Md., September 16-17. Blackford's Ford September 19. Shepherdstown, W. Va., September 20. Reconnoissance toward Smithville, W. Va., October 16-17. Battle of Fredericksburg, Va., December 12-15. Expedition to Richard's and Ellis' Fords December 29-30. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Gettysburg (Pa.) Campaign June 11-July 24. Battle of Gettysburg July 1-3. Bristoe Campaign October 9-22. Rappahannock Station November 7. Mine Run, Campaign November 26-December 2. At Bealeton and guard Orange & Alexandria Railroad until April 30, 1864. Bealeton January 14, 1864 (1 Company). Rapidan Campaign May-June. Battles of the Wilderness May 5-7. Laurel Hill May 8. Spottsylvania May 8-12. Spottsylvania C. H. May 12-21. Assault on the Salient at Spottsylvania C. H. May 12. North Anna River May 23-26. Jericho Mills May 24. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-10. Left front June 10 and ordered home for muster out. Mustered out June 21, 1864.

Regiment lost during service 15 Officers and 194 Enlisted men killed and mortally wounded and 3 Officers and 66 Enlisted men by disease. Total 278.

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