United States Regiments & BatteriesNew York


“Onondaga Regiment”  “Independence Guard”

The Twelfth New York Infantry Regiment lost 3 officers and 61 enlisted men killed or mortally wounded and 1 officer and 59 enlisted men to disease during the Civil War.

1861
May 8 Organized at Elmira, N. Y, and mustered in for two years’ State service unde Colonel Ezra L. Walrath, Lieutenant Colonel James L. Graham and Major John Louis
May 13 The Twelfth New York Infantry Regiment mustered in for three months’ United States service
May 29 Moved to Washington, D.C. by rail via Harrisburg and Baltimore. Attached to Richardson’s Brigade, Tyler’s Division, McDowell’s Army of Northeast Virginia for duty in the Defenses of Washington.
June 19 Lieutenant Colonel Graham resigned and Lieutenant Colonel Robert M. Richardson mustered in as his replacement
July 10 Crossed the Potomac on Chain Bridge.
July 16 To Vienna
July 17 Through Germantown and to within four miles of Centreville
July 18

Blackburn’s Ford

The regiment lost 7 enlisted men killed, 3 mortally wounded, 17 wounded and 7 missing.

Corporal James E. Cross of Company E earned the Medal of Honor for ‘most distinguished gallantry in action’ and Sergeant Charles F. Rand of Company K for ‘great gallantry in action’

July 21

Battle of Bull Run (Manassas)

The 12th was in reserve and suffered no loss

August 2 Remustered for full term of State service. Attached to Richardson’s Brigade, Division of the Potomac
August 27

Upton’s Hill

The regiment lost 1 enlisted man wounded

September Duty in the Defenses of Washington, D. C.
September 20 Captain George W. Cole of Company H transferred to 3rd New York Cavalry Regiment
September 25 Colonel Walrath resigned.
October Attached to Wadsworth’s Brigade, McDowell’s Division, Army of the Potomac
October 21 Major John Louis was accidentally killed at Washington
October 25 Captain Henry Barnum of Company I was promoted to major
1862
February 3 Consolidated into 5 companies: A, G, H, I & K. Company B was merged into H, C into K, D into I and K, E into A, and F into H; Company A was transferred to the 102nd New York Infantry Regiment. Henry A. Weeks was commissioned colonel.
March Attached to Butterfield’s 3rd Brigade, Porter’s 1st Division, 3rd Army Corps, Army of the Potomac
March 10 Advance on Manassas.
March 22-24

Peninsula Campaign

Moved to the Virginia Peninsula

April 5 Warwick Road
April 5-May 4

Siege of Yorktown

April 11 Before Yorktown; no loss.
May 10 Reconnaissance up the Pamunkey; Attached to the 3rd Brigade, 1st Division, 5th Corps
May 26 Reconnaissance to Hanover Court House
May 27

Battle of Hanover Court House

The regiment lost 2 enlisted men wounded and 1 missing

May 27-29 Operations about Hanover Court House
June 25-July 1

Seven days before Richmond

5 officers and 104 enlisted men were killed, 9 enlisted men mortally wounded; and 3 offcers and 56 enlisted men were missing

July 27

Battle of Gaines Mill

The regiment lost 2 oficers and 10 enlsted men killed and 9 enlisted men wounded.

June 30

White Oak Swamp and Turkey Bend

July 1

Malvern Hill

The regiment lost 9 enlisted men killed and 3 wounded. Major Henry Barnum was severely wounded and captured, but recovered and was exchanged

July Duty at Harrison’s Landing
August 16-28 Movement to Fortress Monroe, thence to Centreville
August 22 Adjutant Silas Titus resigns to become colonel of the 122nd New York Infantry Regiment
August 28-
September 2

Pope’s Campaign in Northern Virginia

August 30
Second Battle of Bull Run (Second Manassas)

The regiment lost 17 enlisted men killed, 7 of whom were mortally wounded. Colonel Weeks, Captains Augustus Root and Henry Ryder, 3 other officers and 50 enlisted men were wounded, and 1 officer and 62 enlisted men missing.

September 6-22

Maryland Campaign

September 11 Major Barnum resiged to become colonel of the 149th New York Infantry Regiment.
September 16-17

Battle of Antietam

The regiment was in reserve and suffered no loss

September 19

Shepherdstown

The regiment lost 1 man wounded

September 22 Captain Augustus Root of Company K promoted to major
September At Sharpsburg, Maryland.
October 30-November 19 Movement to Falmouth, Va.
December 12-15

Battle of Fredericksburg

The regiment lost 1 officer and 1 enlisted man killed; 1 officer and 12 enlisted men wounded, 7 men missing

December 29-30 Expedition to Richard’s and Ellis’ Fords
1863
January 20-24 “Mud March”
February-April At Falmouth
February 6 Lieutenant Colonel Richardson resigned to become colonel of the 15th New York Cavalry Regiment and Major Root was promoted to lieutenant colonel
April 27-May 6

Chancellorsville Campaign

May 1-5

Battle of Chancellorsville

The regiment suffered no loss.

May 17 The Twelfth New York Infantry Regiment mustered out at the expiration expiration of its two year term of enlistment.Three years men were consolidated to a Battalion of two companies (D and F) and assigned to duty as Provost Guard at 5th Corps Headquarters under the command of Captain Henry W. Ryder. Lieutenant Colonel Root mustered out and became lieutenant colonel of the 15th New York Cavalry Regiment
June 11

Gettysburg Campaign

July 1-3

Battle of Gettysburg

The battalion suffered no loss at Gettysburg.

October 9-22

Bristoe Campaign

November 7-8 Advance to line of the Rappahannock
November 26-December 2

Mine Run Campaign

1864
January 1 Captain Henry W. Ryder of Company E was promoted to major
May 3-June 2

Campaign from the Rapidan to the James

May 5-7

Battle of the Wilderness

May 8-21

Battle of Spottsylvania Court House

May 23-26

North Anna River

May 26-28 On line of the Pamunkey
May 28-31

Totopotomoy

June 2 Transferred to 5th Veteran New York Infantry Regiment as Companies E and F.