12th Regiment, Maine Infantry

Brief History
The 12th Regiment, Maine Infantry was organized at Portland, and mustered in November 20, 1861. They mustered out December 7, 1864. The Non-Veterans left front November 19, and mustered out December 7, 1864. The Veterans consolidated to a Battalion of four Companies

Companies A, B, C and D of the 12th Maine Regiment became part of the Battalion Twelfth Regiment Infantry. Also the two and three year men of Companies E, F, G, H, I and K of the 12th Maine. The Battalion 12th was mustered out of the service April 18, 1866 at Savannah, Georgia.

For more information on the history of this unit, see:


 * The Wikipedia article, 12th Maine Volunteer Infantry Regiment, (accessed 6 July 2012).

12th Infantry Regiment Timeline in the Civil War

Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.

Company A

Company B

Company C

Company D

Company E

Company F

Company G

Company H

Company I

Company K

The Civil War Soldiers and Sailors database lists 2,960 men on its roster for this unit. Roster.

Other Sources

 * Beginning United States Civil War Research gives steps for finding information about a Civil War soldier. It covers the major records that should be used. Additional records are described in ‘Maine in the Civil War’ and ‘United States Civil War, 1861 to 1865’ (see below).


 * National Park Service, The Civil War Soldiers and Sailors System, is searchable by soldier's name and state. It contains basic facts about soldiers on both sides of the Civil War, a list of regiments, descriptions of significant battles, sources of the information, and suggestions for where to find additional information.


 * Maine in the Civil War describes many Confederate and Union sources, specifically for Maine, and how to find them.. These include compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.


 * United States Civil War, 1861 to 1865 describes and explains United States and Confederate States records, rather than state records, and how to find them. These include veterans’ censuses, compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.


 * Company K, 12th Regiment, Maine Vol. Infantry : soldiers' memorial. Lists members of the Company and gives a brief outline of their activities. Locate at WorldCat.org