The First New York Infantry Regiment lost 79 enlisted men killed or mortally wounded and 3 officers and 31 enlisted men to disease during the Civil War.

1861
April 22 Organized at New York City and mustered in for two years service under Colonel William H. Allen, Lt. Colonel Garrett Dyckman and Major James M. Turner
May 20 Left State for Fortress Monroe, Va. with 37 officers and 800 men on the steamship State of Georgia. Attached to Fort Monroe, Camp Hamilton and Newport News, Va., Dept. of Virginia
May 29 Occupation of Newport News
June 10 Action at Big Bethel, Va.

The regiment lost 2 enlsted men killed and 1 officer wounded

June Duty at Camp Hamilton and Newport News, Va.
July Colonel Allen was court martialled on six charges and cashiered. Lieutenant Colonel Dyckman takes over the regiment and is promoted to colonel.
July 20 Captain John F. Pierson of Copmpany H promoted to major
September 10 Major Pierson promoted to lieutenant colonel and Captain James T. Clancey of Company B promoted to major
1862
March 8 Action between U.S.S. Monitor and C.S.S. Virginia in Hampton Roads

The regiment was under fire from the C.S.S. Virginia for several hours

May Attached to 1st Brigade, 1st Division, Dept. of Virginia
June 5 Joined Army of the Potomac on the Peninsula, attached to 3rd Brigade, 3rd Division, 3rd Army Corps
June 20, 23 & 24 Actions near Fair Oaks
June 25 Oak Grove, near Fair Oaks
June 25-July 1 Seven days before Richmond

The regiment lost 4 enlisted men killed 5 officers and 114 men wounded, and 2 officers and 65 men missing in addition to the casualties listed below from Fair Oaks to Malvern Hill

June 26-29 About Fair Oaks

The regiment lost 4 enlisted men killed

June 29 Peach Orchard and Savage Station
June 30 White Oak Swamp and Glendale

The regiment lost 33 enlisted men killed and 3 mortally wounded. Fourteen of the fifteen members of the color guard were killed or wounded in ten minutes time.

July 1 Malvern Hill

The regiment lost 5 enlisted men killed supporting Thompson’s Battery.

July Duty at Harrison’s Landing attached to 2nd Brigade, 1st Division, 3rd Army Corps
July 30 Major Turner resigns
August 16-27 Movement to Fortress Monroe, then to Centreville, Va.;
August 28-

September 2

Pope’s Campaign in Northern Virginia

The regiment lost 4 enlisted men killed or mortaly wounded, 1 officer and 74 enlisted men wounded, and 16 officers and 95 men missing in addition to the casualtieds listed below for Groveton through Chantilly

August 29 Battle of Groveton

The regiment lost 4 enlisted men killed or mortally wounded

August 30 Bull Run
September 1 Chantilly

The regiment lost 15 enlisted men killed and 5 mortally wounded

September Duty in the Defenses of Washington, D.C.; attached to 3rd Brigade, 1st Division, 3rd Army Corps
October 9 Colonel Dyckman discharged and Lieutenant Colonel Pierson promoted to colonel.
October 14 Major Clancy dismissed. The dismissal was revoked and Clancy was honorably discharged. Captain Joseph Yeamans of Company E promoted to major.
October 11-
November 23
March up the Potomac to Leesburg, then movement to Falmouth, Va.
October 11 Broke camp and marched to Poolesville, Md.
October 14 Camped near Edwards Ferry
October 28 Forded the Potomac at White’s Ford.
October 31 Marched eight miles to Mountain Farm, near Leesburg
November 2 Marched ten miles to Middleburg
November 5 Marched 17 miles to near Salem
November 6 To Crane’s Farm, near Waterloo
November 12 Returned to camp
November 16 To Warrenton
November 17 To Liberty
November 18 To Morrisville
November 19 To Locust Hill
November 22 Marched 12 miles to Falmouth
December 12-15 Battle of Fredericksburg

The regiment lost 7 enlisted men wounded supporting Franklin’s attack on the left.

December 17 Captain Francis Leland of Company H promoted to lieutenant colonel
1863
January 20-24 “Mud March”
February At Falmouth
April 2 Established Camp Sickles
April 27-May 6 Chancellorsville Campaign
May 1-5 Battle of Chancellorsville

The regiment took part in a bayonet attack on Confederate rifle pits and breastworks, then laid under artillery fire for two hours supporting a Union battery, ending in another bayonet charge. It lost 3 enlisted men killed, Lt. Colonel Leland, 2 other officers and 15 enlisted men wounded, and Major Yeamans, 1 other officer and 57 enlisted men missing or captured.

May 8 Embarked at Aquia Creek for Washington to return to New York to muster out
May 10 Arrived in New York and honored by a reception and dinner.
May 25 Mustered out , expiration of term, under Colonel John Frederick Pierson