The 40th New Jersey Volunteer Infantry Regiment lost 2 enlisted men killed and 17 enlisted men to disease during the Civil War.

1864
October 24 Company A mustered in and left State for siege operations outside Petersburg, Va., attached to 4th New Jersey Infantry
December 24 Company B mustered in and left State
1865
January 12 Company B attached to 4th New Jersey Infantry
January 21 Company C mustered in and left State, attached to 4th New Jersey Infantry
January 27 – 31 Company D mustered in and left State for Petersburg, Va.; attached to 4th New Jersey Infantry
February 2 Company E mustered in
February 5-7 Dabney’s Mills, Hatcher’s Run
February 6 Company E left State for Petersburg, Va., attached to 4th New Jersey Infantry
February 9 – 10 Company F mustered in and left State for Petersburg, Va.
February 16 – 17 Company G mustered in and left State for Petersburg, Va.
February 22 – 23 Company H mustered in and left State for Petersburg, Va.
March 2 – 4 Company I mustered in and left State for Petersburg, Va.
March 7 Companies A – F assumed Regimental organization and attached to 1st Brigade, 1st Division, 6th Army Corps under Colonel Stephen Gilkyson
March 10 – 12 Company K mustered in and left State for Petersburg, Va.
March 28-April 9 Appomattox Campaign
April 2 Assault on and capture of Petersburg
April 3-9 Pursuit of Lee
April 9
Appomattox Court House

Surrender of Lee and his army.

April 23-27 March to Danville and duty there
May 18-June 3 March to Richmond, Va., thence to Washington, D.C.
June 8 Corps Review
July 13 Mustered out