15th Regiment, Connecticut Infantry

"The Lyon Regiment"
Connecticut in the Civil War

Bried History
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:


 * The History of the Fifteenth Connecticut Volunteers in the War for the Defense of the Union, 1861-1865, by Sheldon Brainard Thorpe. Online Book

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 the following counties:

Company A - New Haven County

Company B - New Haven County

Company C - New Haven County

Company D - New Haven County

Company E

Company F - New Haven County

Company G - New Haven County

Company H - New Haven County

Company I - New Haven County

Company K

Source Material

 * Catalogue of Connecticut volunteer organizations, with additional enlistments and casualties to July 1, 1864. Compiled From Records in the Adjutant General's Office and Published by Order of the Legislature, by Horace J. Morse - Adjutant General - Online Book
 * 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 (1869) by Connecticut. Adjutant-General's Office; Ingersoll, Colin M. (Colin Macrae), 1819-1904 - Online Book
 * Regimental Timeline - 15th Connecticut Infantry Regiment - The Civil War in the East
 * The Stamford Historical Society - History and Roster