The 128th New York lost 2 officers and 58 enlisted men killed and mortally wounded and 3 officers and 203 enlisted men to disease during the Civil War out of 960 original enlistees and 173 recruits.
|Organized at Hudson, N.Y.|
|September 4||Mustered in under Colonel David S. Cowles.|
|September 5||Left State for Washington, D.C.|
|September||Attached to Defenses of Washington and Baltimore, Md.|
|December||Moved to New Orleans, La., and duty at Camps Parapet and Kenner attached to 1st Brigade, Sherman’s Division, Dept. of the Gulf|
|March 20||Expedition to Ponchatoula|
|May 15||Camp Moore|
|May 21-23||Moved to New Orleans, then to Port Hudson, La. and attached to 1st Brigade, 2nd Division, 19th Army Corps, Dept. of the Gulf|
|May 24-July 9||
Siege of Port Hudson
The regiment lost 22 men killed, 100 wounded and 6 missing during the siege.
Assault on Port Hudson
Colonel David S. Cowles was mortally wounded in the assault. Lieutenant Colonel James Smith took over command of the regiment, and was promoted to colonel.
|June 14||Assault on Port Hudson|
|July 9||Surrender of Port Hudson|
|July 11||Moved to Baton Rouge|
|July 15||To Donaldsonville|
|July||Duty at Donaldsonville and at Baton Rouge|
|January||Attached to 2nd Brigade, 1st Division, 19th Army Corps|
|February||Attached to 3rd Brigade, 2nd Division, 19th Army Corps, Dept. of the Gulf|
|Early in the year||Colonel Smith resigned due to detriorating health.|
|March 23-May 22||Red River Campaign|
|Duty at Alexandria|
|April 13||Grand Ecore|
|April 21-26||Retreat to Alexandria|
Monett’s Ferry, Cane River Crossing
The regiment lost 10 men killed and wounded in a charge, taking many prisoners and being the first to cross the river and plant its colors on the hill.
|April 30-May 10||Construction of dam at Alexandria|
|May 13-20||Retreat to Morganza|
|May 30-June 6||Expedition from Morganza to the Atchafalaya|
|July 3-29||Moved to New Orleans, then to Fortress Monroe, Va., and Washington, D.C.|
|Sheridan’s Shenandoah Valley Campaign. Attached to Army of the Shenandoah, Middle Military Division|
The regiment lost 5 officers and 52 enlisted men killed or wounded. Major Francis S. Keese was badly wounded.
The regiment lost 22 men killed and wounded.
The regiment was on the left flank of the 19th Corps line, the location marked by a monument along the Valley Pike, when it was struck in the flank by Early’s dawn attack. After a brief and violent fight the entire corps was forced to retreat. It reformed three miles in the rear and took part in the afternoon counterattack that overwhelmed Early’s army. The 128th New York lost 105 casualties in the battle, nearly half its strength.
|Duty at Kernstown and Winchester|
|January 5-22||Moved to Savannah, Ga. and attached to 3rd Brigade, Grover’s Division, District of Savannah, Ga., Dept. of the South|
|March 5||Moved to Wilmington, N. C. and attached to 3rd Brigade, 1st Division, 10th Army Corps, Army of the Ohio|
|March 10||To Morehead City, N. C|
|April 8||Moved to Goldsboro|
|May 2||To Savannah. Attached to District of Savannah, Ga., Dept. of the South|
|July 12||Mustered out under Captain Thomas N. Davis at Savannah, Ga.|