The 188th New York Infantry Regiment lost 9 officers and 36 enlisted men killed and mortally wounded and 53 enlisted men to disease during the Civil War.

1864
Organized at Rochester, N.Y.
September 24 Company A organized as Company E, 183rd New York Infantry (which did not complete organization) and mustered in at Elmira, N.Y.
October 4-22 Mustered in under Colonel John McMahon, Lt. Colonel Isaac Doolittle and Major Christopher Davison
October 13 Seven companies left the state under Major Davison to join the Army of the Potomac in the field. Attached to 2nd Brigade, 1st Division, 5th Army Corps
October 20 Siege of Petersburg
October 27-28
Boydton Plank Road, Hatcher’s Run

The regiment lost 12 men killed or mortally wounded, 1 officer and 40 men wounded and 1 man missing.

December 7-12 Warren’s Raid on Weldon Railroad
1865
February 5-7 Dabney’s Mills, Hatcher’s Run
March 25
Hatcher’s Run

The regiment lost 13 men killed or mortally wounded, 18 men wounded, and 3 men missing.

March 28-April 9
Appomattox Campaign

The regiment lost 1 officer and 9 men killed or mortally wounded, and 2 officers and 33 men wounded.

March 29 Lewis Farm, near Gravelly Run and Junction of Boydton and Quaker Roads
March 31 White Oak Road
April 1 Five Forks
April 2 Fall of Petersburg
April 3-9 Pursuit of Lee
April 9 Appomattox Court House. Surrender of Lee and his army.
May 1-12 March to Washington, D.C.
May 23 Grand Review
June Duty at Washington
July 1 Mustered out under Colonel McMahon, Lt. Colonel Doolittle and Major Davison