[2] On 11 November 1861 the regiment left Massachusetts to arrive at Annapolis establishing Camp John A. Andrew and remained there until January of the next year.
[2] During Summer and Fall of 1862 the regiment was stationed in the vicinity or in New Bern, North Carolina[1] and engaged in 3 skirmishes suffering little loss.
[2] On 16 October 1863 the regiment left New Bern and embarked for Fort Monroe where it arrived 3 days later and camped near Newport News.
[1][2] On 16 May at Proctor's Creek Star Brigade was outflanked in heavy fog resulting in Gen. Heckman being taken captive, 23rd Regiment losing 23 killed, 20 wounded and 51 taken prisoners.
[2] Upon recrossing the river it was engaged in Siege of Petersburg until 25 August losing men frequently due to sharpshooter fire.
[1][2] On 4 September the regiment crossed the Appomattox River and through Bermuda Hundred embarked for New Bern reaching it on the 10th and returning to the trenches on Trent.
[1][2] Until May the men remained near Kinston and then were returned to New Bern to provide military police services until 25 June when the regiment was decommissioned.