The 27th New York Volunteer Infantry Regiment lost 2 officers and 72 enlisted men killed and mortally wounded and 2 officers and 70 enlisted men to disease in the Civil War.
|May 21||Organized at Elmira, N.Y.|
|June 15||Mustered in for two years United States service under Colonel Henry W. Slocum, Lieutenant Colonel Joseph J. Chambers and Major Joseph J. Bartlett|
|July 10||Left State for Washington, D.C. by rail via Harrisburg and Baltimore. Attached to Porter’s Brigade, Hunter’s Division, McDowell’s Army of Northeast Virginia|
|July 16-21||Advance on Manassas, Va.|
Battle of Bull Run
The regiment lost 1 officer and 25 men killed; Colonel Slocum, another officer and 42 men wounded; and 60 men missing. Major Bartlett took command of the regiment when Colonel Slocum was wounded.
|August||Duty in the Defenses of Washington, D.C. attached to Heintzelman’s Brigade, Division of the Potomac|
|August 13||Lieutenant Colonel Chambers resigned|
|September 1||Colonel Slocum was promoted to brigadier general, Major Bartlett to colonel, Captain Alexander Adams of Company B to lieutenant colonel and Captain Curtis Gardiner of Company I to major|
|October||Attached to Slocum’s Brigade, Franklin’s Division, Army of the Potomac|
|October 3||Expedition to Pohick Church|
|March||Attached to Slocum’s 2nd Brigade, Franklin’s 1st Division, 1st Army Corps, Army of the Potomac|
|March 10-15||Advance on Manassas, Va.|
|April 4-12||McDowell’s advance on Fredricksburg. attached to 1st Division, Department of the Rappahannock.|
|April 22||Ordered to the Peninsula, Virginia|
|April 24-May 4||Siege of Yorktown, Va. on transports.|
|May 7-8||Landed at West Point. Attached to 2nd Brigade, 1st Division, 6th Army Corps. Colonel Bartlett took command of the brigade as senior officer and Lieutenant Colonel Adams took command of the regiment.|
|May 20||Near Mechanicsville|
|June 25-July 1||
Seven days before Richmond
The regiment lost 1 officer and 34 men killed or mortally wounded, 9 officers and 100 men wounded, and 18 men missing.
|June 27||Gaines’ Mill and Chickahominy|
|June 30||White Oak Swamp and Glendale|
|July 1||Malvern Hill|
|July||At Harrison’s Landing|
|July 24||Major Gardiner resigned, Captain Joseph Bodin of Company H was promoted to major|
|August 16-28||Movement to Fortress Monroe, then to Centreville|
|August 28-31||In works at Centreville|
|September 1||Cover Pope’s retreat to Fairfax Court House|
|September 6||Maryland Campaign|
The regiment was commanded by Lieutenant Colonel Adams while Colonel Bartlett commanded the brigade. It lost 9 men killed or mortally wounded. Lieutenants Seeley and Christman, Color-bearer Sergeant McMahon and 21 other enlisted men were wounded..
The 27th New York was in reserve.
From the War Department tablet for Slocum’s Division on the Antietam battlefield:
Slocum’s Division followed Smith’s in its march from near Crampton’s Pass on the morning of the 17th, and upon reaching the field, occupied the ground from which Smith was advancing; Torbert’s Brigade in the center on either side of this road; Newton’s Brigade on the right connecting with Hancock, and Bartlett’s Brigade on the left, extending beyond the cemetery and into the low ground between Mumma’s and Roulette’s. Beyond supporting the Artillery the Division was not actively engaged.
|September||Duty in Maryland|
|October 29-November 19||Movement to Falmouth, Va.|
|October 4 – 8||Colonel Bartlett was promoted to brigadier general, Lieutenant Colonel Adams to colonel, Major Joseph Bodin to lieutenant colonel and Captain George G. Wanzer of Company E promoted to major|
|January 20-24||“Mud March”|
|April 27-May 6||Chancellorsville Campaign|
|April 29-May 2||Operations about Franklin’s Crossing|
Maryes Heights, Fredericksburg
|May 4||Banks’ Ford|
|May 31||Mustered out on expiration of term under Colonel Adams, Lieutenant Colonel Bodin and Major Wanzer. Three years’ men were transferred to the 121st Regiment New York Infantry.|