15th Regiment, Connecticut Infantry

United States U.S. Military  Connecticut  Connecticut Military Records  Connecticut in the Civil War    15th Regiment, Connecticut Infantry

Brief History - "The Lyon Regiment"
The 15th Regiment, Connecticut Infantry was organized at New Haven, Connecticut and mustered in August 25, 1862. This regiment was mustered out June 27, 1865 and discharged at New Haven July 12, 1865.

For more information on the 15th Regiment Infantry and its history, see:


 * Thorpe, Sheldon Brainard, The History of the Fifteenth Connecticut Volunteers in the War for the Defense of the Union, 1861-1865, (New Haven : The Price, Lee and Adkins Co., 1893). Available online at OpenLibrary, (accessed 9 Mar 2011).

Companies in this Regiment
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. This regiment was composed of men from all parts of Connecticut, but the majority of men in each unit resided in New Haven County.

Company A

Company B

Company C

Company D

Company E

Company F

Company G

Company H

Company I

Company K

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 526. Available Online at Internet Archive, (accessed 8 Mar 2011).  Also available at the Family History Library,  or FHL 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 607. Includes index. Online at Internet Archive, (accessed 8 Mar 2011).  Also available at the Family History Library,  or

Source Material

 * The Civil War in the East - Timeline of the 15th Connecticut Infantry Regiment


 * The Stamford Historical Society - History and Roster