United States Regiments & Batteries > Maine > 12th Maine Infantry Regiment


The 12th Maine Infantry Regiment lost 3 officers and 49 enlisted men killed or mortally wounded and 2 officers and 237 enlisted men to disease during the Civil War.

1861
November 16 The 12th Maine Infantry Regiment was organized at Portland and mustered in.
November 24 The regiment left Maine for Lowell, Mass.
December 30 Continued to Boston
1862
January 2 Embarked on Steamer Constitution for Ship Island, Mississippi.
February 12 Arrived Ship Island. Attached to Butler’s Expeditionary Corps.
March Attached to 3rd Brigade, Dept. of the Gulf
May 4 Moved to New Orleans and duty at U.S. Mint
June 16-20 Expedition to Pass Manchac
June 17 Pass Manchac
September 13-18 Expedition to Ponchatoula (Companies C, D & F)
September 15 Pouchatoula
October 21 Moved to Camp Parapet
November 19 Moved to Baton Rouge, Louisiana. Attached to Grover’s Division, Baton Rouge, La., Dept. Gulf
1863
January Attached to 2nd Brigade, 4th Division, 19th Corps, Department of the Gulf
February Attached to 1st Brigade, 2nd Division, 19th Corps, Department of the Gulf
March 7-27

Operations against Port Hudson

April 9-May 14 Moved to Donaldsonville. Operations in Western Louisiana
April 11-20

Teche Campaign

April 13 Porter’s and McWilliams’ Plantation at Indian Head
April 14 Irish Bend
April 18 Destruction of salt works at New Iberia
April 20-May 20 Advance to the Red River
May 21-24 Advance on Port Hudson
May 24-July 8

Siege of Port Hudson

May 27

Assault on Port Hudson

June 14

Second Assault on Port Hudson

June 20 Thibodeaux (Detachment)
July 9 Surrender of Port Hudson
July 13 Donaldsville
August 12 Moved to New Orleans, then to Ship island, Mississippi.
October At Camp Parapet
1864
January 3-7 Expedition to Madisonville (Companies B, F, K)
January 7 Capture of Madisonville
March 11 Ordered to New Orleans
April to June 16 Veterans on furlough in Maine, Non-Veterans remained at Camp Parapet
May 27 Veterans returned from Portland to New Orleans
June 16 Regiment moved to Morganza, La.
July 3 Moved to Algiers
July 13-20 To Fort Monroe, Virginia.
July 21 To Bermuda Hundred, Virginia.
July 21-25 Duty in trenches.
July 27-29 Demonstration on north side of James River
July 27-28 Deep Bottom
July 31 Moved to Washington, D.C.
August 2 To Tennallytown, Maryland.
August 7-November 28

Sheridan’s Shenandoah Valley Campaign

Attached to Army of the Shenandoah, Middle Military Division, 19th corps, 2nd Division, 1st Brigade

September 3-4 Berryville
September 19

Third Battle of Winchester (Opequan)

September 22

Fisher’s Hill

October 19

Battle of Cedar Creek

Orcober 20 Duty at Cedar Creek
November 9 At Opequan
November 19 Non-Veterans left front. Veterans were consolidated to a Battalion of four Companies.
December 7 Non-Veterans mustered out
1865
January Ordered to Savannah, Georgia and attached to District of Savannah, Georgia, Department of the South
February – March Six new Companies were organized for one years service and assigned as E, F, G, H, I, K.
March Attached to 1st Brigade. 1st Division, 10th Army Corps, Army of the Ohio
1866
February – March Companies E, F, G, H, I & K mustered out
April 18 The remainder of the 12th Maine Infantry Regiment mustered out