The 23rd Massachusetts Infantry Regiment lost 4 officers and 80 enlisted men killed and mortally wounded and 2 officers and 132 enlisted men to disease during the Civil War.

1861
September 28 Organized under Colonel John Kurz, formerly Captain of Company C in the 13th Massachusetts Infantry.
October 24 Andrew Elwell, formerly Lieutenant Colonel of the 8th Massachusetts Infantry, was appointed major.
November 11 Left State for Annapolis, Md., and duty there
1862
January 6 Attached to Foster’s 1st Brigade, Burnside’s Expeditionary Corps
January 6-February 7 Burnside’s Expedition to Hatteras Inlet and Roanoke Island, N. C.
February 8 Battle of Roanoke Island; on transports off Roanoke Island
March 11-13 Moved to New Berne, N. C.
March 14 Battle of New Berne and duty there
March 15 Major Elwell was promoted to lieutenant colonel.
April 1st Brigade, 1st Division, Dept. of North Carolina
April 11 At Batchelor’s Creek
May 4 Provost duty at New Berne, N. C.
November 2-12 Expedition from New Berne
November 2 Action at Rawle’s Mill (Cos. B, C, D, G and I)
November 11 Demonstration on New Berne, then picket and outpost duty in vicinity of New Berne
November 25 Colonel Kurz resigned due to “dissatisfaction relative to rank.” Lieutenant Colonel Andrew Elwell was promoted to colonel.
December Heckman’s Brigade, Dept. of North Carolina
December 11-20 Foster’s Expedition to Goldsboro
December 13-14 Southwest Creek
December 14 Kinston
December 16 Whitehall
December 17 Goldsboro
1863
January 1st Brigade, 2nd Division, 18th Army Corps, Dept. of North Carolina
January 13 Moved to Carolina City
January 19-
February 2
To Morehead City and Hilton Head, S.C.
February 1st Brigade, 1st Division, 18th Army Corps, Dept. of the South
February 11-
April 3
Camp at St. Helena Island, S.C.
April District of Beaufort, N. C., Dept. of North Carolina
April 3-10 Expedition against Charleston
April 12-16 Moved to New Berne
April 17-19 March to relief of Little Washington
April 25 Moved to Carolina City, N. C.
June 26 Company D detached at Fort Spinola
June 27 Reconnaissance toward Swansbore (Company H)
July 2 Ordered to New Berne, attached to Defenses of New Berne, N. C., Dept, of Virginia and North Carolina
July 4-8 Expedition to Trenton and Pollocksville (Companies C, G, H and K)
July 6 Action at Quaker Bridge (Companies A, B, E, F and I)
July 13-16 Expedition from Newport Barracks to Cedar Point
October Heckman’s Command, Newport News, Va., Dept. of Virginia and North Carolina
October 16-18 Moved to Newport News, Va.
1864
January 3rd Brigade, United States Forces, Portsmouth, Va., Dept. of Virginia and North Carolina
January 22. Moved to Portsmouth, Va. and duty there and at Getty’s Station, on Norfolk & Suffolk Railroad
March 1-5 Demonstration on Portsmouth
April 1st Brigade, 2nd Division, 18th Army Corps, Dept. of Virginia and North Carolina
April 13-15 Expedition to Isle of Wight County
April 14 Action at Smithfield, Cherry Grove
April 26 Moved to Yorktown
May 4-28 Butler’s operations on south side of James River and against Petersburg and Richmond
May 6-7 Port Walthal Junction, Chester Station
May 9-10 Swift’s Creek, Arrowfield Church
May 12-16 Operations against Fort Darling
May 14-16
Drury’s Bluff

Captain John W. Raynond of Company G was wounded in the head.

May 16-28 Bermuda Hundred
May 28-June 1 Moved to White House, then to Cold Harbor
June 3 Battle of Cold Harbor

Captain Raymond was wounded in the right arm.

June 15-18 First Assault Petersburg
June 15-September 4 Siege of Petersburg
July 14 Captain Raymond of Company G was promoted to lieutenant colonel.
July 30 Mine Explosion (Reserve)
August 25-
September 4
Duty in the trenches at Bermuda Hundred, Va.
September 4-10 Moved to New Berne, N. C. and duty in the Defenses of New Berne, N. C., Dept. of Virginia and North Carolina
September 9 Affair at Currituck Bridge (Detachment)
September 20 Colonel Elwell was discharged for general disability resulting from sunstroke and diarrhea. John W. Raymond was promoted to colonel.
September 28 Non-Veterans mustered out
1865
February 1st Brigade, 1st Division, District of Beaufort, N. C., Dept. of North Carolina
March District of Beaufort, Dept. of North Carolina
March 3-14 Movements on Goldsboro
March 7 Southwest Creek
March 8-10 Battle of Wise’s Forks
March 14 Occupation of Kinston
May 2 Moved to New Berne and duty there
June 25 Mustered out