"The 31st Massachusetts Volunteer Infantry Regiment was one of only a handful of New England units to serve in Louisiana and the Gulf region during the Civil War, and, of those, it remained there the longest. Its soldiers, most of whom were impressionable young men from small towns in central and western Massachusetts, assumed numerous roles, functioning as infantry, cavalry, and mounted infantry when needed. The regiment operated as an army of occupation; participated in siege warfare at Port Hudson, Louisiana; marched and fought in long field operations such as the Red River campaign; engaged in guerrilla warfare; and garrisoned coastal defense fortifications. It also had the distinction of being the first Federal unit to enter and occupy New Orleans"--