United States Regiments & Batteries > Massachusetts
The 18th Massachusetts Volunteer Infantry Regiment lost 9 officers and 114 enlisted men killed or mortally wounded and 2 officers and 127 enlisted men to disease in the Civil War. It is honored by a monument at Gettysburg.
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1861
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| August 27 | Organized at Readville and Boston and mustered in |
| August 28 | Left State for Washington, D.C.; attached to Fort Corcoran, Defenses of Washington |
| September 26 | At Hall’s Hill, Va. Assigned to Martindale’s Brigade, Porter’s Division, Army of the Potomac. |
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1862
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| March | Assigned to 1st Brigade, 1st Division, 3rd Army Corps, Army of the Potomac |
| March 10-16 | Advance on Manassas, Va. |
| March 16-23 | Moved to Alexandria, then to Fortress Monroe |
| March 27 | Reconnaissance to Great Bethel |
| April 5 | Warwick Road |
| April 5-May 4 | Siege of Yorktown |
| May | Assigned to 1st Brigade, 1st Division, 5th Army Corps, Army of the Potomac |
| May 27 | Battle of Hanover Court House |
| May 27-29 | Operations about Hanover Court House |
| June 25-July 1 | Seven days before Richmond |
| June 26-July 2 | Operations about White House Landing |
| July – August 15 | At Harrison’s Landing |
| August 15-28 | Retreat from the Peninsula and movement to Centreville |
| August 25 | Major Joseph Hayes promoted to lieutenant colonel |
| August 30 |
Second Battle of Bull Run |
| September 16-17 |
Battle of AntietamCommanded by Lieutenant Colonel Joseph Hayes, the regiment was in support of artillery but was not engaged |
| September 19 |
Shepherdstown Ford |
| September 20 | Shepherdstown, W. Va. |
| September 21 – October 30 |
At Sharpsburg |
| October 30- November 19 |
Movement to Falmouth, Va. |
| December 12-15 |
Battle of Fredericksburg |
| December 29-30 | Expedition to Richards and Ellis Fords |
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1863
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| January 20-24 | “Mud March” |
| January – April 27 | Duty at Falmouth |
| April 27-May 6 | Chancellorsville Campaign |
| May 1-5 |
Battle of Chancellorsville |
| June 11-July 24 | Gettysburg Campaign |
| June 21 | Ashby’s Gap |
| July 1-3 |
Battle of GettysburgThe regiment was commanded by Colonel Joseph Hays. It brought 281 men to the field, losing 1 killed, 23 wounded and 3 missing. |
| July 14 | Williamsport, Md. |
| July 27 – September 17 |
At Warrenton and Beverly Ford |
| September 17 – October 11 |
At Culpeper |
| October 11-22 |
Bristoe Campaign |
| November 7-8 | Advance to line of the Rappahannock |
| November 7 | Rappahannock Station |
| November 26- December 2 |
Mine Run Campaign |
| December – May | At and near Brandy Station and Stevensburg |
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1864
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| March | Assigned to 3rd Brigade, 1st Division, 5th Army Corps |
| May-June | Campaign from the Rapidan to the James |
| May 5-7 |
Battle of the Wilderness |
| May 8 | Laurel Hill |
| May 8-21 | Battle of Spotsylvania Court House |
| May 12 | Colonel Hayes promomted to brigadier general |
| May 12 | Assault on the Salient |
| May 23-26 |
North Anna River |
| May 23 | Jericho Ford |
| May 26-28 | On line of the Pamunkey |
| May 28-31 | Totopotomoy |
| June 1-12 |
Cold Harbor |
| June 1-3 | Bethesda Church |
| June 16-18 |
First Assault on Petersburg |
| June 16 to October 21 |
Siege of Petersburg |
| June 21-23 | Weldon Railroad |
| July 20 | Old members left front |
| September 2 | Old members mustered out. Veterans and Recruits consolidated to a Battalion. |
| September 30- October 2 |
Poplar Springs’ Church, Peeble’s Farm |
| October 21 | Consolidated with 32nd Massachusetts Infantry |