18th Regiment, Connecticut Infantry

Brief History
The 18th Regiment, Connecticut Infantry was organized at Norwich, New London County, Connecticut and was mustered in on the 22nd day of August, 1862. This regiment was mustered out at Harper's Ferry, Jefferson County, West Virginia June 27, 1865.

For more information about the 18th Regiment Infantry and its history, see:


 * Regimental History - Walker, William C. and United States Army. Connecticut Infantry Regiment, 18th, History of the Eighteenth Regiment, Conn. Volunteers in the War for the Union, (Norwich, Connecticut : [s.n.], 1885).   Available at the FamilySearch Library,  or FS Library US/CAN 1597895 Item 2. Also
 * The Civil War Archive section, 18th Regiment Infantry, (accessed 19 April 2012).

Companies in this Regiment
The Civil War Soldiers and Sailors database lists 1,763 men on its roster for this unit. Roster.

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. This regiment was composed of men from all parts of Connecticut.

Company A was largely formed by men from New London County.

Company B

Company C

Company D

Company E

Company F was largely formed by men from New London County.

Company G

Company H was largely formed by men from Windham County.

Company I

Company K was largely formed by men from Windham County.

Company Rosters

 * Connecticut. Adjutant General's Office, Catalogue of Connecticut volunteer organizations, with additional enlistments and casualties to July 1, 1864, (Hartford, Connecticut : Case, Lockwood, 1864), page 597. Available Online at Internet Archive, (accessed 8 Mar 2011).  Also available at the FamilySearch Library,  or FS Library US/CAN Film 1550802.


 * Adjutant General's Office, Catalogue of Connecticut volunteer organizations : (infantry, cavalry, and artillery,) in the service of the United States, 1861-1865, with additional enlistments, casualties, &amp;c., &amp;c., and brief summaries, showing the operations and service of the several regiments and batteries, (Bethesda, Maryland : University Publications of America, c1991), page 690. Includes index.  Online at Internet Archive, (accessed 8 Mar 2011).  Also available at the FamilySearch Library,  or

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 ‘Connecticut 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.


 * Connecticut in the Civil War describes many Confederate and Union sources, specifically for Connecticut, 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.


 * Footnote.com, (accessed 2 Apr 2011). (A subscription website, but is available for use at the FamilySearch Library and some FamilySearch Centers). It has digital Civil War soldier service records and brief regiment histories (located at the bottom of some of the muster rolls).


 * The Civil War in the East, (accessed 9 Mar 2011). Timeline of the 18th Connecticut Infantry Regiment


 * Lynch, Charles H. The Civil War diary, 1862-1865, of Charles H. Lynch, 18th Conn. vol's. (Bethesda, Maryland : University Publications of America, c1991),.


 * Walker, William C. (William Carey). History of the Eighteenth Regiment, Conn. Volunteers in the War for the Union. (Norwich, Connecticut : [s.n.], 1885),

Regimental History and Roster

 * The Civil war diary, 1862-1865, of Charles H. Lynch 18th Conn. vol's, by Charles H Lynch, Publisher, [Hartford, Conn., Priv. print. by the Case, Lockwood & Brainard co, 1915, Online at: