The 85th New York Infantry Regiment lost 1 officer and 34 enlisted men killed and mortally wounded and 2 officers and 324 enlisted men to disease during the Civil War.

1861
Organized at Elmira, N.Y.
December 2 Mustered in under Colonel Uriah L. Davis
December 3 Left State for Washington, D.C. and Duty in the Defenses of Washington, D. C. attached to 3rd Brigade, Casey’s Division, Army of the Potomac
1862
March 10-15 Advance on Manassas, Va. attached to 3rd Brigade, 3rd Division, 4th Army Corps, Army of the Potomac
March 28 Moved to the Peninsula, Va.
April 5-May 4 Siege of Yorktown
April 29 Reconnaissance toward Lee’s Mills
May 5 Battle of Williamsburg
May 20-23 Reconnaissance to Bottom’s Bridge
May 24 Seven Pines, Savage Station and Chickahominy
May 24-27 Reconnaissance to Seven Pines
May 31-June 1 Battle of Seven Pines or Fair Oaks
June 8 New Market Road
June Attached to 2nd Brigade, 2nd Division, 4th Army Corps
June 25-July 1 Seven days before Richmond
June 27-28 Bottom’s Bridge
June 30 White Oak Swamp
July 1 Malvern Hill
July-August At Harrison’s Landing
August 16-23 Moved to Fortress Monroe
September 18 To Suffolk, Va. and duty there attached to Wessell’s Brigade, Division at Suffolk, 7th Army Corps, Dept. of Virginia
October 3 Reconnaissance to Franklin
October 9, 26, 29
& 30
Blackwater
October 31 Franklin
November 18 Zuni
December 4 Ordered to New Berne, N. C. and attached to 1st Brigade, 1st Division, Dept. of North Carolina
December 11-20 Foster’s Expedition to Goldsboro, N. C.
December 14 Actions at Kinston
December 16 Whitehall
December 17 Goldsboro
December-April Duty at New Berne, N. C.
1863
January Attached to 1st Brigade, 4th Division., 18th Army Corps, Dept. of North Carolina
April 7-10 Expedition to relief of Little Washington
May 2 Moved to Plymouth, N. C. and attached to the District of the Albemarle, Dept. of North Carolina
July 5-7 Expedition to Williamston and Gardiner’s Bridge (Detachment)
July 26-29 Expedition from Plymouth to Foster’s Mills
August 6-13 Expedition to Roanoke Island
August 26-27 Expedition to Columbia
September – November Duty at Albemarle Sound and Chowan River attached to Sub-District of the Albemarle, District of North Carolina, Dept. of Virginia and North Carolina
November 6-9 Expedition to Winton
1864
January 1 Regiment veteranized
January 6-21 Expedition up the Chowan
January 20 Harrellsville (Detachment)
April 17-20 Siege of Plymouth, N. C.
April 20 Surrendered at Plymouth
1865
January Regiment reorganized and attached to Plymouth, N. C., District of North Carolina
March 1-April 26 Campaign of the Carolinas
March 6-21 Advance on Kinston and Goldsboro attached to 2nd Brigade, Division District of Beaufort, Dept. of North Carolina
March 8-10 Battle of Wise’s Forks
March 14 Occupation of Kinston
March 21 Occupation of Goldsboro
April 14 Occupation of Raleigh attached to 23rd Army Corps, Dept. North Carolina
April 26 Bennett’s House. Surrender of Johnston and his army.
June Duty in the Dept. of North Carolina
June 27 Mustered out.