The 11th New Hampshire Infantry Regiment lost 5 officers and 140 enlisted men killed or mortally wounded and 1 officer and 151 enlisted men to disease during the Civil War.
1862 | |
| Organized at Concord | |
| September 2 | Mustered in |
| September 11-14 | Moved to Washington, D.C. and assigned to Attached to Brigg’s Brigade, Casey’s Division, Military District of Washington |
| October 4 | Moved to Pleasant Valley, Md. and attached to 2nd Brigade, 2nd Division, 9th Army Corps, Army of the Potomac |
| October 27-November 19 | Movement to Falmouth, Va. |
| December 12-15 | Battle of Fredericksburg |
1863 | |
| January 20-24 | Burnside’s Second Campaign (“Mud March”) |
| February 11 | Moved to Newport News |
| March 26-April 1 | To Covington, Ky. |
| April | Duty at various points in Kentucky. Attached to 2nd Brigade, 2nd Division, 9th Army Corps, Dept. of Ohio |
| June 4-14 | Moved to Vicksburg, Miss. and attached to 2nd Brigade, 2nd Division, 9th Army Corps, Army of the Tennessee |
| June 14-July 4 | Siege of Vicksburg |
| July 4-10 | Advance on Jackson, Miss. |
| July 10-17 | Siege of Jackson, Miss. |
| July 18-22 | Destruction of Railroad at Madison Station |
| July 23 | At Milldale, Miss. |
| August 6-14 | Moved to Cincinnati, Ohio and attached to 2nd Brigade, 2nd Division, 9th Army Corps, Dept. of the Ohio |
| August 15 | At Covington, Ky. |
| August 26 | At Nicholasville, Camp Parke, Crab Orchard and Loudon |
| October 12-29 | March to Knoxville, Tenn. |
| November 4-December 23 | Knoxville Campaign |
| November 16 | Campbell Station |
| November 17-December 4 | Siege of Knoxville |
| November 29 | Repulse of Longstreet’s assault on Fort Saunders |
| December | Duty in East Tennessee |
1864 | |
| March 18-April 7 | Moved to Annapolis, Md. and attached to 2nd Brigade, 2nd Division, 9th Army Corps, Army of the Potomac |
| May 3-June 15 | Campaign from the Rapidan to the James River |
| May 5-7 | Battle of the Wilderness |
| May 8-21 | Spotsylvania Court House |
| May 12 | Assault on the Salient, Spotsylvania C. H. |
| May 23-26 | North Anna River |
| May 26-28 | On line of the Pamunkey |
| May 28-31 | Totopotomoy |
| June 1-12 | Cold Harbor |
| June 1-3 | Bethesda Church |
| June 15-19 | First Assault on Petersburg |
| June 16 – April 2 | Siege of Petersburg |
| July 30 | Mine Explosion, Petersburg |
| August 18-21 | Weldon Railroad |
| September 29-October 2 | Poplar Springs Church |
| October 27-28 | Boydton Plank Road, Hatcher’s Run |
1865 | |
| March 25 | Fort Stedman |
| March 28-April 9 | Appomattox Campaign |
| April 2 | Assault on and fall of Petersburg |
| April 3 | Occupation of Petersburg |
| April 3-9 | Pursuit of Lee |
| April 20-27 | Moved to Washington, D.C. |
| May | Duty at Alexandria |
| May 23 | Grand Review |
| June 4 | Mustered out |
Antietam