18th Regiment, Connecticut Infantry

Mustered in August 22, 1862.
Mustered out June 27, 1865.
Organized at Norwich.
Mustered out at Harper's Ferry, West Virginia.
Regimental History - History of the Eighteenth Regiment, Conn. Volunteers in the War for the Union, by William C. Walker at the Salt Lake City, Family History Library

The 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 London County

Company B

Company C

Company D

Company E

Company F - New London County

Company G

Company H - Windham County

Company I

Company K - Windham County

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, &c., &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 - 18th Connecticut Infantry Regiment - The Civil War in the East